样式: 排序: IF: - GO 导出 标记为已读
-
Urine Test Strip Quantitative Assay with a Smartphone Camera Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-3-18 Miroslav Pohanka, Jitka Zakova
Urine test strips for urinalysis are a common diagnostic tool with minimal costs and are used in various situations including homecare and hospitalization. The coloration scaled by the naked eye is simple, but it is suitable for semiquantitative analysis only. In this paper, a colorimetric assay is developed based on a smartphone digital camera and urine test strips. Assays of pH, albumin, glucose
-
A Simple and Rapid LC-MS/MS Method for the Quantification of Nirmatrelvir/Ritonavir in Plasma of Patients with COVID-19 Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-3-6 Xiujing Zhu, Lin Li, Bin Dai, Zhijun Liu, Zhipeng Wang, Lili Cui, Shouhong Gao, Wansheng Chen, Xia Tao, Deduo Xu
The combined prescriptions of nirmatrelvir/ritonavir and other drugs are limited due to potential drug-drug interactions, so therapeutic drug monitoring (TDM) becomes particularly important. In this study, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was established for determination of the nirmatrelvir/ritonavir in plasma of patients with COVID-19, providing technical and theoretical
-
Pharmacokinetics of Ziyuglycoside I and Ziyuglycoside II in Rat Plasma by UPLC-MS/MS Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-3-1 Xiuwei Shen, Ziyue Wang, Wenting Li, Shenshen Mei, Shunjun Ma, Xianqin Wang, Congcong Wen, Fan Chen, Guojun Zheng
Ziyuglycoside I and ziyuglycoside II are important active components of Sanguisorba officinalis L., which have excellent pharmacological effects, such as antioxidant and anticancer effects. However, the bioavailability of ziyuglycoside I and ziyuglycoside II has not been reported. This work aims to establish a UPLC-MS/MS method to study the pharmacokinetics of ziyuglycoside I and ziyuglycoside II in
-
Development of a Novel Multiplex PCR Method for the Rapid Detection of SARS-CoV-2, Influenza A Virus, and Influenza B Virus Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-2-29 Liang Ma, Haoyan Zhu, Yongwei Jiang, Xiaomu Kong, Peng Gao, Yi Liu, Meimei Zhao, Guoxiong Deng, Yongtong Cao
Objective. A sensitive and specific multiplex fluorescence rapid detection method was established for simultaneous detection of SARS-CoV-2, influenza A virus, and influenza B virus in a self-made device within 30 min, with a minimum detection limit of 200 copies/mL. Methods. Based on the genome sequences of SARS-CoV-2, influenza A virus (FluA), and influenza B virus (FluB) with reference to the Chinese
-
Validation and Application of Screen-Printed Microchip for Potentiometric Determination of Metformin Hydrochloride in Tablet Dosage Form Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-2-27 Mohammed Alqarni, Abdullah A. Alshehri, Hassan Arida
Metformin is an oral biguanides hypoglycaemic agent, which used to lower the blood glucose levels in people with type 2 diabetes mellitus. Many analytical techniques have been used to quantify the drug in different pharmaceutical dosage forms; however, most of these methods have limited throughput in the quality control application. A disposable potentiometric microsensor responsive to metformin has
-
Method Development for Simultaneously Determining Indomethacin and Nicotinamide in New Combination in Oral Dosage Formulations and Co-Amorphous Systems Using Three UV Spectrophotometric Techniques Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-2-20 Nazira Sarkis, Abdulkader Sawan
This research aims to develop methods for simultaneously determining indomethacin (IND) and nicotinamide (NCT) in binary mixtures, immediate-release capsules, sustained-release capsules, and co-amorphous systems, which were designed in 2021 to improve the solubility, dissolution rate, and stability of the amorphous state of indomethacin. Moreover, this new combination may have also other possible medical
-
Analysis of Quality Differences in Radix Dipsaci before and after Processing with Salt Based on Quantitative Control of HPLC Multi-Indicator Components Combined with Chemometrics Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-2-7 Hangsha Wu, Yue Lv, Rui Tang, Mingfang Zhao, Yafei Li, Feiyang Wei, Changyu Li, Weihong Ge, Weifeng Du
Radix Dipsaci (RD) is the dry root of the Dipsacus asper Wall. ex DC., which is commonly used for tonifying the kidney and strengthening bone. The purpose of this study was to analyze the difference between raw and salt-processed RD from the chemical composition comprehensively. The fingerprints of raw and salt-processed RD were established by HPLC-DAD to determine the contents of loganin (LN), asperosaponin
-
Prioritizing Asthma Treatment Drugs through Multicriteria Decision Making Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-2-5 Sobia Sultana
Asthma is a medical condition characterized by inflammation, narrowing, and swelling of a person’s airways, leading to increased mucus production and difficulties in breathing. Topological indices are instrumental in assessing the physical and chemical attributes of these asthma drugs. As resistance to current treatments continues to emerge and undesirable side effects are linked to certain medications
-
Oxidative Polymerization of Aniline on the Surface of Sisal Fibers (SFs) as Defluoridation Media for Groundwater Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-2-1 Tesfamariam Teklu
Chemical modification of sisal fibers via in situ oxidative polymerization of aniline was conducted to examine their defluoridation capacity for fluoride from drinking water. The effects of polyaniline modifications have shown significant changes on the chemical moieties and defluoridation capacity of sisal fibers (SFs). FTIR peaks at 1440 cm−1 and 1560 cm−1 revealed the presence of benzoid and quinoid
-
A Scoping Review on Fungus and Mycotoxin Studies in the Building’s Environment: Mycotoxin Analysis by Mass Spectrometry Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-27 Salina Abdul Rahman, Nurul Izzah Ahmad, Roshan Jahn Mohd Salim, Nur Jannaim Muhamad, Anis Syuhada Omar Hamdan, Yin-Hui Leong
It has been well-established that mycotoxins are poisonous chemical metabolites secreted by certain molds. Some of them significantly affect the health of humans and livestock. Increasing attention is now being paid to uncovering and identifying mycotoxins’ presence in the building’s environment. However, the main challenge remains in suitable and reliable analytical methods for their identification
-
Analytical and Clinical Evaluation of a Chemiluminescent Immunoassay to Detect Serum Chitinase-3-like Protein 1 in HBV-Related Liver Diseases Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-24 Yanqiang Liao, Se Peng, Lesheng Huang, Zhong Li, Jian Hu, Rui Xu, Wenzhi Tang, Jialing Zhuang
Serum chitinase-3-like protein 1 (CHI3L1) is a diagnostic marker for liver diseases, such as hepatocellular carcinoma (HCC). Herein, we aimed to evaluate the analytical performance of a chemiluminescent immunoassay (CLIA) for the quantitative detection of CHI3L1 and its application in hepatitis B virus (HBV)-related liver diseases. The CLIA for CHI3L1 detection presented good analytical performance
-
Development of an On-Column Trace Enrichment Method for the Determination of Sub-μg/L Bisphenol A in Bottled Water by RP-HPLC with Fluorescent Detection Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-24 Kevin C. Honeychurch
A simple extraction-free, on-column trace enrichment liquid chromatographic method for the determination of trace levels of bisphenol A (BPA) in bottled water samples has been developed. It was found possible to determine ng/L (ppt) levels of BPA by the direct introduction of 6 mL of sample water to the HPLC column utilising fluorescence detection (Exλ = 274 nm, Emλ = 314 nm). Following the loading
-
Determination of Major and Trace Metals in Date Palm Fruit (Phoenix dactylifera) Samples Using Flame Atomic Absorption Spectrometry and Assessment of the Associated Public Health Risks Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-23 Feven Tamirat, Wondimeneh Dubale Adane, Merid Tessema, Endale Tesfaye, Gizaw Tesfaye
This study aimed to assess the concentrations of major and trace metals (Na, Ca, Fe, Zn, Ni, Mn, Cu, Cd, and Pb) in date palm fruit samples collected from diverse regions, including Afar (Ethiopia), Iraq, and Saudi Arabia, utilizing flame atomic absorption spectrometry (FAAS). The wet acid digestion method was employed for sample treatment, with optimization of the key parameters such as reagent volume
-
Analysis of the Concentration of Heavy Metals in Khat Grown in Meru County and the Assessment of Their Associated Health Risks Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-19 Albert M. Oyugi, Joshua K. Kibet, John O. Adongo
Contamination of farm produce by toxic heavy metals has become a serious global health concern. These metals can bioaccumulate in plant tissues and are precursors for major public health problems such as cancer and neural impairment. Khat (Catha edulis) also referred to as miraa has the potential to sequester and accumulate both micronutrients and potentially toxic heavy metals in its consumable parts—tender
-
Research Status in the Use of Surface-Enhanced Raman Scattering (SERS) to Detect Pesticide Residues in Foods and Plant-Derived Chinese Herbal Medicines Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-12 Bing-Yan Chu, Chi Lin, Peng-Cheng Nie, Zheng-Yan Xia
Surface-enhanced Raman scattering (SERS) technology has unique advantages in the rapid detection of pesticides in plant-derived foods, leading to reduced detection limits and increased accuracy. Plant-derived Chinese herbal medicines have similar sources to plant-derived foods; however, due to the rough surfaces and complex compositions of herbal medicines, the detection of pesticide residues in this
-
Method Validation and Measurement Uncertainty Estimation for Determination of Multiclass Pesticide Residues in Tomato by Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-10 Suraj Shrestha, Bandana Lamichhane, Nibedita Chaudhary
Method validation is an essential technique for ensuring the reliability and accuracy of an analytical method. This study aimed to optimize and validate a fast, reliable, and accurate method for quantitatively determining pesticide residues of diverse chemical classes in the tomato matrix. Various method performance characteristics were tested and compared with predefined criteria. Twenty-six different
-
Study on the Characteristics of Traditional Chinese Medicine Syndromes in Patients with Erosive Gastritis Based on Metabolomics Int. J. Anal. Chem. (IF 1.8) Pub Date : 2024-1-2 Zhang Shixiong, Liu Shaowei, Yang Zeqi, Xu Miaochan, Zhou Pingping, Bai Haiyan, Lv Jingjing, Wang Yangang
According to traditional Chinese medicine theory, tongue coatings reflect changes in the body. The goal of this study was to identify a metabolite or a set of metabolites capable of classifying characteristics of traditional Chinese medicine syndromes in erosive gastritis. In this study, we collected tongue coatings of patients with erosive gastritis with damp-heat syndrome (DHS), liver depression
-
Chemical Fingerprint Analysis and Content Determination of Horned Gallnut and Bellied Gallnut in Galla Chinensis Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-12-31 Xiaomei Long, Shuang Guo, Jianxing Gu, Lijun Zhang, Haipeng Liu, Yuan Fan, Weibo Wen
To establish an objective and comprehensive methodology to analyse the connections and differences between horned gallnut (HG) and bellied gallnut (BG) in Galla Chinensis (GC). The HPLC fingerprints from 15 batches of HG and 15 batches of BG were performed, and chemometric analysis including similarity analysis (SA), hierarchical clustering analysis (HCA), principal component analysis (PCA), and orthogonal
-
Quantitative Analysis of Favipiravir by HPLC: Development and Validation Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-12-31 Moammal Qurt, Rania Eshtayyeh, Hani Naseef, Abdullah Rabba, Abdallah Damin Abukhalil, Numan Malkieh, Maher Kharouf
Favipiravir is a broad-spectrum oral antiviral agent and has been approved for the treatment of COVID-19 infection cases. It inhibits a protein known as RNA polymerase, which transcribes and replicates the viral RNA genome, causing the spread of the infection. The current study aimed to develop and validate a new analytical method utilizing HPLC in accordance with international requirements (ICH and
-
Effects of Soil Properties on Pb, Cd, and Cu Contents in Tobacco Leaves of Longyan, China, and Their Prediction Models Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-12-28 Wei Xi, YuanYe Ping, HaiYang Cai, Qian Tan, Chaoyang Liu, Junru Shen, YaWen Zhang
Longyan City in Fujian Province is one of China’s top-quality tobacco-producing areas and plays an essential role in local economic development. To determine the correlation between heavy metal content in tobacco leaves and soil factors, soil physical and chemical properties and heavy metal contents of lead, cadmium, and copper in tobacco leaves were measured and analyzed by the correlation regression
-
Facile and Sensitive Acetylene Black-Based Electrochemical Sensor for the Detection of Imatinib Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-11-30 Shun Li, Qingwu Tian, Xuanming Xu, Chao Xuan, Xiaomin Yang, Shukai Sun, Tingting Zhou
A facile and sensitive electrochemical sensor for determining imatinib (IMA) was constructed by modifying a glassy carbon electrode (GCE) with a nanocarbon material, acetylene black (AB). The electrochemical behavior of IMA on the prepared GCE/AB was studied using electrochemical techniques, namely, differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy. The direct determination
-
Chemical Application of Topological Indices in Infertility Treatment Drugs and QSPR Analysis Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-11-24 Sobia Sultana
The main challenges faced by medical researchers while producing novel drugs are time commitment, amplified costs, creating a safety profile for the medications, reduced solubility, and a lack of experimental data. Chemical graph theory makes an important theoretical contribution to drug development and design by investigating the structural properties of molecules. To improve drug research and assess
-
Determination of Multicomponents in Rubi Fructus by Near-Infrared Spectroscopy Technique Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-11-6 Wenjun Du, Chunyan Wu, Hesong Yu, Qingran Kong, Yunjian Xu, Weidong Zhang
Objective. Rubi Fructus (RF) is a dry aggregate fruit of Rubus (Rosaceae). It has shown significant pharmacological effects such as anti-oxidation, hypoglycemic, and anti-inflammatory. A combination of near-infrared (NIR) spectroscopy and partial least squares regression (PLSR) under seven different spectral data preprocessing techniques was used to determine the performance of quantitative analysis
-
Method Validation and Measurement Uncertainty (MU) Evaluation on Enrofloxacin and Ciprofloxacin in the Aquatic Products Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-11-4 Li Liu, Nanbiao Long, Juan Zhou, Manxue Liu, Shaobo He, Wuying Chu
This study aimed to investigate a detection method of enrofloxacin and ciprofloxacin to be avail for strictly supervising the quality and safety of aquatic products. The results displayed that the optimal extraction conditions for enrofloxacin and ciprofloxacin were the following five aspects: 15 g dosages of Na2SO4 to dehydrate, 8‰ of acetonitrile and 50% hydrochloric acid to deproteinization, 2 mL
-
An Eco-Friendly, Interference, and Solvent Free Surfactant-Assisted Dual-Wavelength β-CorrectionSpectrometric Method for Total Determination and Speciation of Cu2+ Ions in Water Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-11-4 Hassan Alwael, Doaa S. Al-Raimi, Khairia M. Al-Ahmary, Hany A. Nasef, Amal S. Alharthi, Tharawat N. Abduljabbar, Liyakat H. Mujawar, Ekram Y. Danish, Mohammad T. Soomro, Mohammad S. El-Shahawi
Spectral interference through the presence of uninformative variables, excess reagents, and complications in the refinement of the analyte signal is common in the quest to identify complex species in real samples. Therefore, an economical green, facile, and sensitive strategy has been developed for Cu2+ detection using the anionic surfactant sodium dodecylsulphate- (SDS-) assisted dual-wavelength β-correction
-
Chemical Composition and Future Perspectives of Essential Oil Obtained from a Wild Population of Stachys germanica L. Distributed in the Balkan Mountains in Bulgaria Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-31 Stanislava Ivanova, Stela Pashova, Stanislav Dyankov, Yoana Georgieva, Kalin Ivanov, Niko Benbassat, Nina Koleva, Maria Bozhkova, Diana Karcheva-Bahchevanska
Stachys germanica L. (Lamiaceae) is a plant associated with a rich history in the traditional medicine of Iran, Turkey, and Serbia. However, researchers have not fully investigated the pharmacological potential of the herb, and scientific data on this plant species are limited. The aim of the current study was to evaluate the chemical composition of the essential oil (EO) obtained from the aerial parts
-
Phytochemical Constituents of Adansonia digitata L. (Baobab) Fruit Pulp from Tekeze Valley, Tigrai, Ethiopia Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-25 Abebe Asmamaw Wasihun, Desta Berhe Sbhatu, Goitom Gebreyohannes Berhe, Kiros Hagos Abay, Gebreselema Gebreyohannes
Baobab (Adansonia digitata L) is a large tree species growing in semiarid and arid lowlands of Ethiopia and other places. The plant is valued by natives for its contributions as a cash crop and livelihood tree. Previous studies using samples from different countries have documented their phytochemical profiles and nutritional and health benefits. This study explored the phytochemical constituents and
-
Effect of Processing Methods on Antinutritional Factors (Oxalate, Phytate, and Tannin) and Their Interaction with Minerals (Calcium, Iron, and Zinc) in Red, White, and Black Kidney Beans Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-18 Serkalem Abera, Weldegebriel Yohannes, Bhagwan Singh Chandravanshi
The purpose of this study was to assess how different processing techniques affected mineral compositions, antinutritional factors, and their interactions in red, white, and black kidney beans consumed in Ethiopia. Mineral contents were found to be 41–44, 58–78, and 112–126 mg Ca/100 g in the raw, soaked, and cooked samples, respectively. Iron content in the raw, soaked and cooked samples were found
-
Structural Identification of Impurities in Pioglitazone Hydrochloride Preparations by 2D-UHPLC-Q-Exactive Orbitrap HRMS and Their Toxicity Prediction Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-17 Dandan Zhang, Weijian Wang, Haiyun Zhao, Song Wang, Mingyan Yu, Dongmei Zhang, Wenkun Liu, Qiangsheng Xie, Dejun Chen
Pharmaceutical companies and regulatory agencies have more and more concerns for impurities in pharmaceuticals and their toxicity. In this work, heart-cutting two-dimensional ultrahigh-performance liquid chromatography (2D-UHPLC) in combination with high-resolution mass spectrometry (HRMS) was used, setting HRMS as positive mode of electrospray ionization to identify five impurities in pioglitazone
-
Liquid Chromatography-Tandem Mass Spectrometry Detection of Human and Veterinary Drugs and Pesticides in Surface Water Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-16 Xiang-Pu Zhang, Shu Zhang, Chun-Yan Xu, Wei-Wei Li, Hai-Bo Ling, Yang Luo, Kang Jian, Tao Li, Chuan Yi
Antibiotics and pesticides are widespread in most rivers and lakes due to the overuse of antibiotics and pesticides, but there are few methods for simultaneous analysis of antibiotics and pesticides in aquatic environments. To address this knowledge gap, a concise and sensitive analytical method is proposed in which three classes of human and veterinary drugs (sulfonamides, macrolides, and hormones)
-
Comparing Jaffe and Enzymatic Methods for Creatinine Measurement at Various Icterus Levels and Their Impacts on Liver Transplant Allocation Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-12 Neda Soleimani, Sima Dehghani, Mohammad Hossein Anbardar, Sahand Mohammadzadeh, Elaheh Amirinezhad Fard, Atefeh Zare Sheibani, Mohammad Javad Esmaeili, Marsa Ebrahimi
The Model for End-Stage Liver Disease (MELD) scoring system is used to prioritize liver transplantations and assess disease severity. This includes the international normalized ratio (INR), creatinine, and total bilirubin. Since there are several ways to measure creatinine, MELD scores can produce inconsistent results. The objectives of this study were to define a valid cut-off for bilirubin interference
-
Rapid Separation of Asiatic Acid, Quercetin, and Kaempferol from Traditional Chinese Medicine Centella asiatica (L.) Urban Using HSCCC-Semi-Prep-HPLC and the Assessment of Their Potential as Fatty Acid Synthase Inhibitors Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-10 Binbin Xia, Yali Li, Yang Liu, Wenfang Sun, Jing Chen, Liushui Li, Jingyao Pang, Xianjun Liu, Shicai Chen, Hua Cheng
The main objective of this study was to rapidly separate asiatic acid (AA), quercetin (QCN), and kaempferol (KPL) from Centella asiatica (L.) Urban using high-speed counter-current chromatography (HSCCC) in tandem with the UV detector of semipreparative high-performance liquid chromatography (Semi-Prep-HPLC) and to evaluate their potential as inhibitors of fatty acid synthetase (FAS). To efficiently
-
Measurement of Magnesium, Zinc, and Copper in Human Serum by Using Isotope Dilution Inductively Coupled Plasma Mass Spectrometry (ID ICP-MS) Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-9 Jian Yang, Lixia Chi, Shengmin Li
In order to evaluate the reliability of the ID ICP-MS method for the measurement of magnesium, zinc, and copper in human serum, we investigated the traceability, precision, trueness, and uncertainty of the method. This method traces the contents of magnesium, zinc, and copper in human serum to the standard materials NIST SRM3131a, SRM3168a, and SRM3114 respectively, thus completing the traceability
-
Retracted: Preparation and Synergistic Anti-Tumor Effect of Iridium Oxide Nanocomposites under Microscope. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-04 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/9694425.].
-
Retracted: Influence of Nanosemiconductor Materials on Thermal Stability of Solar Cells. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-04 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/6805501.].
-
Retracted: Application of Isotope Tracer in Cross-Well Nanometre Tracer Testing. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-04 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/6387030.].
-
Retracted: Application of Carbon Nanofiber-Modified Concrete in Industrial Building Design. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-04 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2023/2587551.].
-
Retracted: Preparation and Optical Properties of Compound Nanopowder Art Ceramics. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-10-04 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/5415922.].
-
QSPR Modeling of Fungicides Using Topological Descriptors Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-30 Saima Parveen, Fatima Saeed, Fozia Bashir Farooq, Nusrat Parveen, Nazeran Idrees, Sumiya Nasir, Rakotondrajao Fanja
A topological index is a real number that is obtained from a chemical graph’s structure. Determining the physiochemical and biological characteristics of a variety of medications is useful since it more accurately represents the theoretical characteristics of organic molecules. This is accomplished using degree-based topological indices. The QSPR research has improved the structural understanding of
-
Wastewater Treatment Using Wood Ash and Cement as Chemical Coagulant Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-30 Milkessa Ingida, Gurmesa Bedane, Firanbon Adugna, Degefa Nigusu, Mohammed Hussen, Chala Hailu Sime
Water is essential for daily activities and maintaining human well-being. However, in many less-developed countries, including Ethiopia, the lack of a well-developed wastewater treatment system leads to contaminated surface water. This poses significant risks to human health. To address this problem, wastewater can be treated using locally available materials such as wood ash and cement as chemical
-
A Highly Selective Analytical Method Based on Salt-Assisted Liquid-Liquid Extraction for Trace-Level Enrichment of Multiclass Pesticide Residues in Cow Milk for Quantitative Liquid Chromatographic Analysis Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-29 Habtamu Bekele, Weldegebriel Yohannes, Negussie Megersa
In this study, a simple, inexpensive, selective, and fast salting-out assisted liquid-liquid extraction (SALLE) technique coupled with high-pressure liquid chromatography-diode array detection (HPLC-DAD) was developed for the extraction, preconcentration, and analysis of trace level seven multiclass pesticide residues in pasteurized and raw cow milk samples. The significant factors that affect the
-
Determination of Tenacissoside G, Tenacissoside H, and Tenacissoside I in Rat Plasma by UPLC-MS/MS and Their Pharmacokinetics Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-28 Fan Chen, Yizhe Ma, Ying Cui, Wanhang Wang, Chenchen Mei, Jingjing Nie, Congcong Wen, Xiuwei Shen, Xuzhao Zhou
An ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) method was developed for the determination of tenacissoside G, tenacissoside H, and tenacissoside I in rat plasma. The rat plasma was treated with liquid-liquid extraction using ethyl acetate. The determination was performed on the UPLC HSS T3 column (50 mm × 2.1 mm, 1.8 μm) with a mobile phase consisting of acetonitrile-water
-
Next-Generation Sequencing Analysis of 3 Uterine Adenosarcomas with Heterogeneously Differentiated Genomic Mutations Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-28 Yao Li, Xue Meng, Yuqing Luo, Xiang Huang, Shuai Luo, Jinjing Wang
Uterine adenosarcoma (UA) is an uncommon mixed tumor containing a benign to at most mildly atypical epithelial component and a sarcoma-like stroma, usually a low-grade, stromal component, with rare heterogeneous elements. Currently, tumor etiology is largely unknown. To better understand the gene mutations in UA, next-generation sequencing (NGS) technology analysis was performed. This study showed
-
Wild Mushrooms: A Hidden Treasure of Novel Bioactive Compounds Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-22 Gebreselema Gebreyohannes, Desta Berhe Sbhatu
Secondary metabolites are hidden gems in mushrooms. Understanding these secondary metabolites’ biological and pharmacological effects can be aided by identifying them. The purpose of this work was to profile the mycochemical components of the extracts of Auricularia auricula judae, Microporus xanthopus, Termitomyces umkowaani, Trametes elegans, and Trametes versicolor to comprehend their biological
-
Retracted: Prediction of Dissolved Oxygen Concentration in Sewage Treatment Process Based on Data Recognition Algorithm. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-09-20 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/1525902.].
-
Determination of Methanol, Acetaldehyde, and Ethyl Acetate in Thousand Folds of Ethanol Sample by Headspace Gas Chromatography with Mass Spectrometry Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-16 Nguyen Quoc Thang, Le Van Tan
Alcohol beverages have been widely consumed in several parts of the world. In this study, volatile organic compounds in alcoholic beverages including acetaldehyde, ethyl acetate, methanol, and higher ethanol were investigated and evaluated using a headspace gas chromatograph equipped with a mass spectrometer. This study evaluated the suitability of the chromatographic system, linearity, limit of detection
-
A Novel miRNA Detection Method Using Loop-Mediated Isothermal Amplification Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-9-12 Saiwei Wu, Abdu Ahmed Abdullah Al-Maskri, Qun Li, Jiatong Liu, Sheng Cai
A novel ligation-based loop-mediated isothermal amplification has been developed for miRNA detection. Two stem-loop structure DNA linker A/B probes which hybridized with miRNA were designed to establish a rapid and ultrasensitive miRNA-LAMP system for miRNA detection. Target miR-200a was used to template the ligation of Linker A/B probes with SplintR Ligase and used as a dumbbell-shaped amplicon. By
-
Retracted: Application of Realistic 3D Model in Building Prefabricated Nanomaterial Structure. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/1726948.].
-
Retracted: Application of Carbon Fiber Cement-Based Composites in Improving Construction Durability. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/2323534.].
-
Retracted: Electrochemical Preparation of Nanocatalysts and Their Application in Electrocatalysis. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/9884302.].
-
Retracted: 3D Modeling of Sculpture Nano-Ceramics under Sparse Image Sequence. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/5710535.].
-
Retracted: Mo-Si-B Alloy Formed by Optional Laser Melting Process. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/4996265.].
-
Retracted: Effect of Aeolian Sand Powder Addition on Frost Resistance of Concrete Pavement. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/5087896.].
-
Retracted: Blasting Law of Liquid CO2 Phase Change in Coal Mine Based on Numerical Simulation. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/6866925.].
-
Retracted: Load Test Analysis of a Long-Span Prestressed Nano-Concrete Highway Bridge. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/5169548.].
-
Retracted: A Systematic Study on the Extraction and Image Reproduction of Ceramic Sculpture Artworks. Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-08-16 International Journal Of Analytical Chemistry
[This retracts the article DOI: 10.1155/2022/6752589.].
-
Assessment of Drinking Water Quality in Urban Water Supply Systems: The Case of Hawassa City, Ethiopia Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-8-14 Yirged Antehun Mengstie, Wendesen Mekonin Desta, Esayas Alemayehu
In many developing countries, such as Ethiopia, water quality and the risk of water-related diseases are serious public health issues. The present study goal was to assess the drinking water quality from source to household tap water. To characterize and analyze drinking water quality parameters, 21 water samples were collected, of which 11 water samples were collected from sources (spring, borehole
-
Simultaneous Determination and Stability Analysis of Ten New Psychoactive Substances including Synthetic Cathinones, Phenethylamines, and Ketamine Substitutes in Urine Using Liquid Chromatography-Tandem Mass Spectrometry Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-7-17 Feng-Shuo Yang, Hei-Hwa Lee, Li-Ping Tseng, Yung-Hung Lee, Yung-Sheng Lan, Yi-Cheng Lee, Yi-Cheng Chou, Yi-Ching Lin
Knowing the stability of drugs is important to ensure accurate and reliable results of drug concentrations. This study evaluated the stability of ten new psychoactive substances (NPSs) in urine and methanol/water at different storage temperatures. Quantitative analyses were performed using liquid chromatography-tandem mass spectrometry. Three replicates of each storage condition were analyzed at day
-
Evaluation of Antibiotics Residues in Milk and Meat Using Different Analytical Methods Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-6-30 Melaku Getahun, Rahel Belete Abebe, Ashenafi Kibret Sendekie, Alem Endeshaw Woldeyohanis, Asmamaw Emagn Kasahun
Veterinary drugs are pharmacologically and biologically active chemical agents. At present, veterinary drugs are extensively used to prevent and treat animal diseases, to promote animal growth, and to improve the conversion rate of feed. However, the use of veterinary drugs in food-producing animals may leave residues of the parent compounds and/or their metabolites in food products resulting in harmful
-
Rapid Determination of Three Organic Acids in Polygonum Vivipari Rhizoma via One Marker by HPLC-UV at Equal Absorption Wavelength and Effervescence-Assisted Matrix Solid-Phase Dispersion Int. J. Anal. Chem. (IF 1.8) Pub Date : 2023-6-28 Zhengming Qian, Dingqiang Huang, Zhuobin He, Qinghui He, Guoying Tan, Qi Huang, Yikuo Sun, Wenqing Li
A rapid HPLC-UV method for the determination of three organic acids (neochlorogenic acid, chlorogenic acid, and cryptochlorogenic acid) in Polygoni Vivipari Rhizoma (PVR) by one marker was developed. The sample was prepared by effervescence-assisted matrix solid-phase dispersion (EA-MSPD). The separation of compounds was performed on a Poroshell column. The equal absorption wavelength was set as follows: