在被扣押的电子液体中快速选埃托米达和其类似物,使用热溶解电喷射电离,加上三重四极质谱法
Meng Li1, Bicheng Lin2, Binling Zhu1
1Department of Forensic Science, Fujian Police College, Fuzhou 350007, China.
Toxics
|January 8, 2025
概括
像埃托米达特这样的非法化合物被非法添加到电子烟中,造成健康风险. 使用TD-ESI/MS/MS的新快速检测方法有效地识别了电子液体中的这些物质.
科学领域:
- 法医化学 法医化学
- 分析化学 分析化学
- 毒理学 毒理学 毒理学
背景情况:
- 电子烟越来越受欢迎,这引发了安全问题,因为非法添加了etomidate,metomidate和isopropoxate等医疗化合物.
- 这些伪造的电子液体对健康构成重大风险,并促进滥用药物.
- 现有的检测方法可能不足以快速或高效地进行法医和监管查.
研究的目的:
- 开发和验证一种快速有效的分析方法,用于在电子液体中检测乙米酸,甲米酸和异酸.
- 评估这些非法化合物在被扣押的电子液体样本中的流行程度.
- 为法医和监管机构提供可靠的工具.
主要方法:
- 开发一种热溶解电喷离离子合三重四极质谱法 (TD-ESI/MS/MS) 方法.
- 优化参数以实现高灵敏度和快速检测.
- 分析了70个被扣押的电子液体样本,并与气体染色学质谱法 (GC-MS) 进行了比较.
主要成果:
- 该TD-ESI/MS/MS方法实现了高灵敏度,目标化合物的检测极限低至3 ng/mL.
- 对70个样本的查发现了广泛的污染:46%仅含有埃托米达,13%仅含有异酸盐,11%含有埃托米达和米达.
- 来自TD-ESI/MS/MS的定性结果与GC-MS完全一致,证实了方法的准确性.
结论:
- 开发的TD-ESI/MS/MS方法具有高度灵敏,准确和可重复性,用于检测电子液体中的乙米酸,甲米酸和异酸.
- 该方法的速度 (检测时间为1分钟) 和缺乏预处理使其成为高通量选的理想选择.
- 这种技术为法医和监管机构提供了一种有价值的工具,以打击非法使用伪造的电子液体.
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