[通过固相提取-超高性能液体染色学-并列质谱法同时确定水中的61种激素]
Yue-Qin Chen1, Ming Ma1, Hong-Dan Xu1
1Wuxi Health Branch, Jiangsu United Vocational and Technical College, Wuxi 214000, China.
Se pu = Chinese journal of chromatography
|August 29, 2024
概括
一种新的方法使用固相提取和UPLC-MS/MS.精确检测到水中的61种类型的类固醇激素. 这种技术对于监测水安全和管理激素污染至关重要.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 水质监测 水质监测
背景情况:
- 类固醇激素是水中的新兴环境污染物.
- 由于结构上的相似性,同时检测多种类型的类固醇激素具有挑战性.
- 现有的方法难以对多种激素类型进行准确和高通量分析.
研究的目的:
- 开发一种快速,高通量方法,同时确定水中的61种激素成分.
- 建立在线固体相提取与超高性能液体染色学-并联质谱学 (SPE-UPLC-MS/MS) 结合起来,用于全面的激素分析.
- 评估该方法的灵敏度,准确性和适用于水质监测的适用性.
主要方法:
- 建立了一个连续的在线SPE-UPLC-MS/MS方法,用于分析61种类固醇激素 (葡萄皮质激素,矿物质皮质激素,雄激素,孕激素).
- 优化了SPE条件,使用HC-C18柱和乙尼洗,从1L水样中有效提取和净化.
- 开发了最佳的UPLC条件,使用BEH C18柱和酸与酸的酸-水梯度,加上正离子模式ESI-MS/MS,用于敏感检测.
主要成果:
- 该方法实现了所有61种激素的优异线性 (R2>0.99).
- 方法检测极限在0.05-1.50 ng/L之间,平均恢复率在62.3%和125.2%之间 (RSDs为1.1%-10.5%).
- 在太湖盆地地区的地表和地下水样本中成功检测出10种激素成分.
结论:
- 开发的SPE-UPLC-MS/MS方法简单,高度灵敏,准确,可同时确定水中的多个类固醇激素.
- 这种方法在追踪向激素残留物和确保水安全方面具有重大潜力.
- 区域分析强调了特定激素的存在,为污水处理过程提供了有针对性的处理策略.
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