合成和表征pH响应的深溶解溶剂,然后通过HPLC用于水样中的双A的微量测定
1College of Science, Heilongjiang Bayi Agricultural University, Heilongjiang, P. R. China.
Journal of separation science
|December 8, 2023
概括
一种新的pH响应的深度环氧溶剂方法有效地从水中提取双A. 这种技术可以在环境样本中灵敏而准确地确定双A.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
背景情况:
- 双A (BPA) 是一种在水样中发现的内分泌干扰化学物质.
- 需要敏感和准确的方法来确定BPA.
研究的目的:
- 开发一种响应pH的深度环氧溶剂 (DES) 微提取方法来确定BPA.
- 将DES与高性能液态染色学 (HPLC) 结合起来,以提高分离和预度.
主要方法:
- 制备五种DES,使用提摩尔和各种碳素酸.
- 利用pH诱导的DES相变来同时提取和分离相位.
- 提取参数的优化,包括DES类型,摩尔比率,体积和试剂度.
主要成果:
- 该方法实现了高精度 (一天内2.2%,一天内4.3%) 的BPA确定.
- 从0.05-50μg L-1观察到线性,低检测极限为0.02μg L-1.
- 在真实水样中精确量化BPA,相对回收率为92.5%-105.2%.
结论:
- 开发的pH响应的DES-HPLC方法对水中的双A分析有效.
- 这种方法为环境监测提供了一个敏感,准确和高效的工具.
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