当前位置: X-MOL 学术J Chromatogr Sci › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Oxidative Stress Biomarker Levels of Simulated Artificial Body Fluids: Comparative HPLC-PDA and LC–MS/MS Approaches: Significance of Raw PDA and MS/MS Data for Chemometric Discrimination
Journal of Chromatographic Science ( IF 1.5 ) Pub Date : 2022-04-14 , DOI: 10.1093/chromsci/bmac031
Ayse Sengul 1 , Cigdem Yengin 2 , Sait Egrilmez 3 , Emrah Kilinc 1
Affiliation  

HPLC-PDA, LC–MS/MS methods were developed for simultaneous determination of a group of oxidative stress biomarkers (OSBs); 2dA, 2dC, 2dU, 3NLT, 5HMU and 8OHdG in 10 simulated artificial body fluids. O-phosphoric acid and methanol composed mobile phases A and B for gradient elution in HPLC-PDA using ODS-2 column. Linearity obtained for 1.0×10−6–1.0×10−4M range. LODs were 1.73×10−6, 1.19×10−6, 2.59×10−6, 1.40×10−6, 2.21×10−6 and 4.07×10−6M for 2dU, 8OHdG, 2dA, 2dC, 5HMU and 3NLT, respectively. LOQs were 5.29×10−6, 4.02×10−6, 6.82×10−6, 4.02×10−6, 6.82×10−6 and 9.92×10−6M. About 10 mM aqueous ammonium acetate solution and methanol containing 0.1% (v/v) formic acid composed mobile phases A and B for gradient elution in LC–MS/MS. Linearity obtained for 1.0×10−8–1.0×10−6M range. LODs were 2.88×10−10, 1.01×10−8, 3.38×10−9, 1.36×10−7, 1.81×10−7 and 1.40×10−8M for 2dU, 8OHdG, 2dA, 2dC, 5HMU and 3NLT, respectively. LOQs were 9.37×10−10, 3.22×10−8, 1.91×10−8, 4.53×10−7, 5.90×10−7 and 2.18×10−8M. Both methods were validated using ICH Q2(R1) guideline. Specificity, linearity, range, accuracy, precision, reproducibility, LOD, LOQ and recovery were achieved. Chemometric analysis was performed on raw PDA and MS data to check their significance for discrimination of OSBs. Sets of single and triple quadrupole fragmentations were evaluated for principle component analysis. Chosen number of PCs successfully distinguished OSBs of interest.

中文翻译:

模拟人工体液的氧化应激生物标志物水平:比较 HPLC-PDA 和 LC-MS/MS 方法:原始 PDA 和 MS/MS 数据对化学计量学鉴别的意义

开发了 HPLC-PDA、LC-MS/MS 方法用于同时测定一组氧化应激生物标志物 (OSB);10 种模拟人工体液中的 2dA、2dC、2dU、3NLT、5HMU 和 8OHdG。O-磷酸和甲醇组成流动相 A 和 B,用于使用 ODS-2 柱在 HPLC-PDA 中进行梯度洗脱。在 1.0×10−6–1.0×10−4M 范围内获得线性。2dU、8OHdG、2dA、2dC、5HMU 和 3NLT 的 LOD 分别为 1.73×10-6、1.19×10-6、2.59×10-6、1.40×10-6、2.21×10-6 和 4.07×10-6M,分别。LOQ 分别为 5.29×10-6、4.02×10-6、6.82×10-6、4.02×10-6、6.82×10-6 和 9.92×10-6M。约 10 mM 醋酸铵水溶液和含有 0.1% (v/v) 甲酸的甲醇组成流动相 A 和 B,用于 LC-MS/MS 梯度洗脱。在 1.0×10−8–1.0×10−6M 范围内获得线性。LOD 分别为 2.88×10−10、1.01×10−8、3.38×10−9、1.36×10−7、1.81×10−7 和 1。40×10−8M 分别用于 2dU、8OHdG、2dA、2dC、5HMU 和 3NLT。LOQ 分别为 9.37×10−10、3.22×10−8、1.91×10−8、4.53×10−7、5.90×10−7 和 2.18×10−8M。两种方法均使用 ICH Q2(R1) 指南进行了验证。实现了特异性、线性、范围、准确度、精密度、再现性、LOD、LOQ 和回收率。对原始 PDA 和 MS 数据进行了化学计量分析,以检查它们对区分 OSB 的重要性。对单四极和三重四极碎片集进行了主成分分析评估。选择的 PC 数量成功区分了感兴趣的 OSB。达到了 LOQ 和回收率。对原始 PDA 和 MS 数据进行了化学计量分析,以检查它们对区分 OSB 的重要性。对单四极和三重四极碎片集进行了主成分分析评估。选择的 PC 数量成功区分了感兴趣的 OSB。达到了 LOQ 和回收率。对原始 PDA 和 MS 数据进行了化学计量分析,以检查它们对区分 OSB 的重要性。对单四极和三重四极碎片集进行了主成分分析评估。选择的 PC 数量成功区分了感兴趣的 OSB。
更新日期:2022-04-14
down
wechat
bug