超高效液相色谱-串联质谱法同时测定环境水体中15种精神类药物
Simultaneous determination of 15 psychotropic substances in environmental water by ultra-high performance liquid chromatography-triple quadrupole tandem mass spectrometry
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摘要: 采用固相萃取-超高效液相色谱串联质谱技术建立水中抗抑郁类、抗癫痫类、抗精神分裂类共15种精神类药物分析测定方法.水体样品经过Oasis HLB固相萃取柱进行富集后以ACQUITY UPLC BEH C18为分析柱,采用UPLC-MS/MS多反应监测离子(MRM)模式进行检测,同时外标法定量.结果表明,所建立的方法在1.0—200 μg·L-1范围内线性关系良好,相关系数R2均大于0.99;检出限为1.05—9.90 ng·L-1,加标回收率为65.69%—105.53%,相对标准偏差均小于10%(n=6),该法灵敏度高,分析速度快,满足痕量分析测试的要求,应用该方法测定了太湖水体中精神类药物的残留浓度水平,发现有11种物质可被不同程度检出,浓度范围为0.8—77.6 ng·L-1.
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关键词:
- 药物活性化合物 /
- 精神类药物 /
- 固相萃取 /
- 超高效液相色谱-串联质谱 /
- 新型污染物
Abstract: A simultaneous determination method for 15 kinds of psychotropic substances including antiepileptic,Antidepressants and Antischizophrenic in groundwater was determined by ultra-high performance liquid chromatography-tandem mass spectrometry. After filtration by filter membrane, HLB cartridge was selected to enrich and purify water samples. The analytes were separated on ACQUITY UPLC BEH C18 column and quantified by tandem mass spectrometry. The linear correlation coefficients of psychotropic substances were higher than 0.99 in the concentration range of 1.0—200 μg·L-1;the limits of detection were 1.05—9.90 ng·L-1; The recoveries were in the range of 65.69%—105.53% and the relative standard deviations (RSD) were less than 10%(n=6). The proposed method was rapid, stable and sensitive, which can meet the ultra-trace analysis requirements in the waters samples. The method was applied to the determination of the psychotropic substances in surface water from Taihu lake and the eleven kinds of substances could be detected with the range of 0.8—77.6 ng·L-1. -
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