[固体相提取与高性能液体染色学-三重四极质谱相结合,用于同时测定来自饮用水处理厂的水样中的七种库马林]
Wen-Mei Jiao1, Jing-Ming Yang1, Ce Xu2
1School of Life Sciences and Chemical Engineering, Jiangsu Second Normal University, Nanjing 211200, China.
Se pu = Chinese journal of chromatography
|December 26, 2024
概括
一种新方法准确地检测到饮用水中的七种库马林,包括细胞毒性化库马林. 这种分析有助于评估消毒副产品的形成,并确保水的安全.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 水质分析 水质分析
背景情况:
- 化库马林是饮用水中发现的细胞毒性消毒副产品.
- 评估氨酸的形成需要一种敏感的水分析方法.
研究的目的:
- 开发一种简单,快速,准确和灵敏的方法来量化饮用水处理厂样本中的七种库马林.
- 为了评估该方法在真实水矩阵中的性能.
主要方法:
- 固体相提取 (SPE) 使用HLB列进行样品预处理.
- 高性能液体染色学-三重四极质谱 (HPLC-TQ-MS) 与多重反应监测 (MRM) 模式下的电喷射电离 (ESI) 进行分析.
- 在Phenomenex Luna C18柱上进行梯度化,使用酸/水和甲醇移动相.
主要成果:
- 该方法表现出良好的线性 (r > 0.99) 和0.67-1.12 ng/L的低方法检测极限 (MDLs).
- 恢复率在61.4%至91.5%之间,相对标准偏差 (RSD) ≤11.2%.
- 在饮用水样本中检测到7种库马林,在不同处理阶段的水平有所不同.
结论:
- 开发的SPE-HPLC-TQ-MS方法适用于饮用水处理中的库马林监测.
- 该方法有效地评估水处理过程中库马林的形成和去除.
- 即使在复杂的水矩阵中,也可以通过简单的SPE或样本稀释来实现准确的量化.
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