同时测定饮用水和源水中的11种锡洛,使用固相微提取技术与气色谱-质谱相结合
Sijie Liu1, Jie Ma1, Su Jiang1
1Department of Chemistry and Physics, Jilin Provincial Center for Disease Control and Prevention, Changchun, China.
Frontiers in chemistry
|February 27, 2025
概括
一种新的方法使用固相微提取和GC-MS/MS.精确检测水中的11种锡洛. 这种分析对于监测环境中的锡洛污染和保护公众健康免受这些潜在的有毒化合物影响至关重要.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 毒理学 毒理学 毒理学
背景情况:
- 锡洛在消费品中普遍存在,并在环境中检测到.
- 甲基西洛对水生生物有毒,影响神经,免疫和生殖系统.
- 甲基西洛的致癌性和致变性特性需要在水源中进行监测.
研究的目的:
- 开发一种精确,快速和有选择的方法来测定饮用水和源水中的锡洛.
- 为了同时检测11种常见的西洛化合物.
- 通过评估水质来解决迫切需要保护人类健康的问题.
主要方法:
- 固相微提取 (SPME) 与气体染色学-并联质谱学 (GC-MS/MS) 结合.
- 优化提取和脱落参数以提高效率.
- 评估不同的SPME纤维涂层,确定乙/聚二甲基和乙/碳/聚二甲基为最佳的.
主要成果:
- 该方法表现出极好的线性 (r > 0.9946) 和精度 (RSD% < 8.0%).
- 实现了低最低检测度的西洛,范围从0.008到0.025μg/L.
- 在源水样本中检测到微量水平 (0.0080.019μg/L) 的十甲基cyclopentasiloxane (D5) 和十二甲基cyclohexasiloxane (D6).
结论:
- 开发的SPME-GC-MS/MS方法是简单的,快速的,有效的,用于素分析.
- 证实了该方法适用于在不同水类型中同时确定11种石的适用性.
- 提供了一种可靠的工具,用于监测饮用水和源水中的锡洛污染.
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