废水中的烟草特异性类化合物和亚胺的高吞吐量和敏感量化
Zhe Wang1, Qiuda Zheng1, Benjamin J Tscharke1
1Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland, 4102, Australia.
一种新的直接注射方法简化了烟草生物标志物的废水分析. 这种技术有效量化烟草特有的类化合物和亚胺,有助于监测烟草使用和公众暴露.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 公共卫生 公共卫生
背景情况:
- 烟草特有的类化合物和亚胺是烟草使用和暴露的关键指标.
- 目前对这些化合物的废水分析方法昂贵且耗时.
- 在废水中监测这些生物标志物可以评估人口一级的烟草消费和暴露.
研究的目的:
- 开发和验证一种直接注射液体染色学-并联质谱法 (LC-MS/MS) 方法,用于量化废水中的烟草特异性化物和胺胺.
- 建立一个高吞吐量,成本效益高的替代传统固体相提取方法.
- 评估澳大利亚废水样本中这些化合物的存在和稳定性.
主要方法:
- 使用了直接注射液体染色学-并联质谱法 (LC-MS/MS).
- 两种烟草类化合物 (阿纳巴辛,阿纳巴辛) 和五种亚胺 (NAT,NNN,NNAL,NAB,NNK) 的量化.
- 方法验证包括线性,检测/量化极限,准确性,精度,过损失和矩阵效应.
主要成果:
- 该方法表现出极好的线性 (R2>0.99) 和灵敏度 (LOD 0.17 ng/L,LOQ 1.0 ng/L).
- 在所有43个废水样本中检测到阿纳巴辛和阿纳塔宾,其度在5.041 ng/L之间.
- 在<50%的样本中检测到三种尼托胺 (NAT,NNN,NNAL),其度<6.2 ng/L. 四种尼托胺显示出良好的下水道内稳定性.
结论:
- 开发的直接注射LC-MS/MS方法是一种快速有效的工具,用于同时分析废水中的烟草生物标志物.
- 这种方法有助于对整个人口的烟草使用和暴露在有害的烟草特异性亚胺中进行高通量监测.
- 调查结果为与烟草消费有关的公共卫生倡议和环境监测提供了有价值的数据.
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