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A screen-printed electrochemical sensing platform surface modified with nanostructured ytterbium oxide nanoplates facilitating the electroanalytical sensing of the analgesic drugs acetaminophen and tramadol
Microchimica Acta ( IF 5.3 ) Pub Date : 2020-01-14 , DOI: 10.1007/s00604-020-4118-x
Mohamed Khairy 1 , Craig E Banks 2
Affiliation  

An electrochemical sensing platform based upon screen-printing electrodes (SPEs) modified with nanostructured lanthanide metal oxides facilitate the detection of the widely misused drugs acetaminophen (ACP) and tramadol (TRA). Among the metal oxides examined, Yb 2 O 3 nanoplates (NPs) were found to give rise to an optimal electrochemical response. The electroanalysis of ACP and TRA individually, and within mixtures, was performed using cyclic and differential pulse voltammetry. The ACP and TRA exhibited non-overlapping voltammetric signals at voltages of +0.30 and + 0.67 V (vs. Ag/AgCl; pH 9) using Yb 2 O 3 -SPEs. Pharmaceutical dosage forms and spiked human fluids were analyzed in wide linear concentration ranges of 0.25–654 and 0.50–115 μmol.L −1 with limits of detection (LOD) of 55 and 87 nmol.L −1 for ACP and TRA, respectively. The Yb 2 O 3 -SPEs offer a sensitive and chemically stable enzyme-free electrochemical platform for ACP and TRA assay. Graphical abstract Schematic presentation of one-shot electrochemical analysis of misused drugs, tramadol (TRA) and acetaminophen (ACP) by utilizing ytterbium oxide nanoplates modified screen-printed electrodes (Yb 2 O 3 -SPEs). The Yb 2 O 3 -SPEs showed interesting responses for ACP and TRA within pharmaceutical formulations and human fluids.

中文翻译:

用纳米结构氧化镱纳米板修饰的丝网印刷电化学传感平台表面促进镇痛药物对乙酰氨基酚和曲马多的电分析传感

基于用纳米结构镧系金属氧化物修饰的丝网印刷电极 (SPE) 的电化学传感平台有助于检测广泛滥用的药物对乙酰氨基酚 (ACP) 和曲马多 (TRA)。在所检查的金属氧化物中,发现 Yb 2 O 3 纳米片 (NP) 产生最佳电化学响应。使用循环和微分脉冲伏安法分别对 ACP 和 TRA 以及在混合物中进行电分析。ACP 和 TRA 使用 Yb 2 O 3 -SPE 在 +0.30 和 +0.67 V(相对于 Ag/AgCl;pH 9)的电压下表现出非重叠伏安信号。在 0.25–654 和 0.50–115 μmol.L -1 的宽线性浓度范围内分析药物剂型和加标人体液体,ACP 和 TRA 的检测限 (LOD) 分别为 55 和 87 nmol.L -1。Yb 2 O 3 -SPE 为 ACP 和 TRA 测定提供了一个灵敏且化学稳定的无酶电化学平台。图形摘要 利用氧化镱纳米板修饰的丝网印刷电极 (Yb 2 O 3 -SPE) 对滥用药物曲马多 (TRA) 和对乙酰氨基酚 (ACP) 进行一次性电化学分析的示意图。Yb 2 O 3 -SPE 对药物制剂和人体液体中的 ACP 和 TRA 显示出有趣的响应。
更新日期:2020-01-14
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