色谱法
化学
甲酸
分析物
苯乙胺
醋酸铵
检出限
伪麻黄碱
尿
液相色谱-质谱法
质谱法
麻黄素
高效液相色谱法
药理学
医学
立体化学
生物化学
作者
Shu-Yu Fan,Chi-Zong Zang,Po-Han Shih,Ya-Chun Ko,Yu-Hsiang Hsu,Mei-Chih Lin,Sheng-Hong Tseng,Der-Yuan Wang
标识
DOI:10.1016/j.forsciint.2020.110429
摘要
Synthetic cathinones, which are a group of β-keto analogs of phenethylamine, have been reported as the most emerging new psychoactive substances in the past decade. The quantity and variety of synthetic cathinones have continued to increase, which poses considerable risks to public health and social security. In this study, an analytical method based on liquid chromatography-tandem mass spectrometry (LCMS/MS) was established for the simultaneous determination of 73 synthetic cathinones and related metabolites in urine. The chromatographic analysis was performed using a Kinetex® Biphenyl column (10 cm ×2.1 mm, 1.7 μm), applying a gradient mobile phase, comprising 0.1 % formic acid aqueous solution with 5 mM ammonium acetate and 0.1 % formic acid methanolic solution; the entire run time of the analysis was within 8 min. The multiple reaction monitoring (MRM) mode was employed to collect the monitoring and quantitative ion pairs. Intra-day/inter-day precision and accuracy were less than 10 % for all the studied analytes. The limits of detection and quantification for all the analytes were 0.1–0.5 ng/mL and 0.5–1.0 ng/mL, respectively. The matrix effect was satisfactory for all the analytes, with a deviation lower than 20 %. The present method was further applied to 67 authentic urine samples in which 13 different synthetic cathinones were detected from 32 positive samples. The abuse of poly-synthetic cathinones was examined that up to seven items was detected in one case from authentic samples in this study.
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