通过毛细管电泳-质谱法分析产生的水样中的纳夫酸的分析
Kemilly M P Pinheiro1, Alysson V F Sako2, Marcella F Rodrigues1
1Instituto de Química, Universidade Federal de Goiás, Goiânia, Brazil.
Journal of separation science
|August 15, 2023
概括
一种新的毛细电泳质谱法有效地分析产生的水中的酸. 这种技术可以准确地识别和量化各种酸,对复杂的环境样本有效.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 有机化学 有机化学
背景情况:
- 纳弗酸是石油开采产生的水中的关键污染物.
- 对于环境风险评估而言,精确的纳夫酸分析至关重要.
- 现有的分析方法可能缺乏复杂矩阵的灵敏度或速度.
研究的目的:
- 开发和验证一种快速毛细电泳质谱法 (CE-MS) 方法.
- 在具有挑战性的生产水样中分析广泛的纳夫酸.
- 建立方法性能特征,包括线性,可重复性和检测极限.
主要方法:
- 使用毛细管电泳与质谱学 (CE-MS) 结合使用.
- 优化了一个特定的缓冲系统 (40 mmol/L氧化,32 mmol/L酸,20%v/v异醇,pH 8.6).
- 方法验证包括评估可重复性,日间变异性,线性和检测极限.
主要成果:
- 通过CE-MS方法,在约13分钟内成功检测出8种类型的纳夫酸.
- 观察到良好的重复性,分析时间的相对标准偏差 (RSD) <2%,峰值区域为6.6%.
- 在指定度范围内证实了线性行为,检测极限从0.31到1.64毫克/升.
- 对六个生产水样本的分析确定并量化了四种特定的纳夫酸,度从4.8到98.9毫克/升.
结论:
- 开发的CE-MS方法是快速的,可重复的和有效的,用于分析复杂的生产水中的纳夫酸.
- 该方法为石油田废水的环境监测和风险评估提供了有价值的工具.
- 该技术对现实环境样本具有很高的适用性.
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