通过固相提取和GC-MS/MS在水样中同时确定多环芳,酸盐和双a
Thi Yen Pham1, Thi Thu Trang Nguyen1, Duc Long Huynh1
1Institute of Science and Technology for Energy and Environment, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
这项研究提出了一种新方法,用于在地表水中同时检测多环芳 (PAH),甲酸 (PAE) 和双A (BPA). 经过验证的技术提供了对这些常见的环境污染物的准确和精确量化.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 质谱测量质量谱测量
背景情况:
- 多环芳 (PAH),甲酸 (PAE) 和双A (BPA) 是水生生态系统中普遍存在的持久性有机污染物.
- 这些污染物对环境和人类健康构成风险.
研究的目的:
- 开发和验证一种敏感和可重复的方法,用于在地表水中同时量化16种优先PAH,6种PAE和BPA.
- 建立可靠的分析方法,用于日常监测微量有机污染物.
主要方法:
- 使用C18弹进行固体相提取 (SPE) 用于样品制备.
- 在选定的反应监测 (SRM) 模式下进行气色谱-并联质谱 (GC-MS/MS) 分析.
- 方法验证包括准确性,精度,线性,LOD和LOQ的确定.
主要成果:
- 该方法在0.1-200 ng/mL范围内的23个目标化合物中实现了良好的线性 (R2 = 0.9936-0.9993).
- 检测极限 (LOD) 在0.01-0.54 ng/mL之间,量化极限 (LOQ) 在0.03-1.63 ng/mL之间.
- 满意的恢复 (76.4-115.2%) 和相对标准偏差<10% 确认方法可靠性.
结论:
- 开发的GC-MS/MS方法可以在一次运行中同时提取和量化多种有机污染物.
- 这种方法大大减少了分析时间和溶剂消耗.
- 该方法是准确的,高度精确的,适用于环境水样中的微量有机污染物的常规监测.
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