Rapid Analysis of Commonly Used Quaternary Ammonium Compounds in Soil and Sediment by Ultrasonic-assited Extraction
10.19756/j.issn.0253-3820.231411
- VernacularTitle:超声辅助萃取快速分析土壤及沉积物中常见季铵盐类化合物
- Author:
Qian SONG
1
;
Shi-Yu XIAO
;
Biao ZHANG
;
Xiang-Ying ZENG
;
Yi LIANG
;
Zhi-Qiang YU
Author Information
1. 中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广州510640;中国科学院深地科学卓越创新中心,广州510640;中国科学院大学,北京100049
- Keywords:
Soil;
Sediment;
Quaternary ammonium compounds;
Ultrasonic extraction;
Liquid chromatography-mass spectrometry
- From:
Chinese Journal of Analytical Chemistry
2024;52(11):1651-1658,中插1-中插8
- CountryChina
- Language:Chinese
-
Abstract:
Quaternary ammonium compounds (QACs) are widely used as fungicides and surfactants in daily products and disinfection products,and as additives in industrial process. The QACs can be deposited and accumulated in soil after long-term discharge. In the present study,based on ultrasonic-assisted extraction-liquid chromatography-tandem mass spectrometry (UAE-LC-MS/MS) technique,a sensitive analytical method was developed for rapid analysis of 11 kinds of QACs,including 4 kinds of benzylalkyldimethylammonium compounds,4 kinds of alkyltrimethylammonium compounds,and 3 kinds of dialkyldimethylammonium compounds. The results showed that QACs in soil and sediment could be effectively extracted with 5％acetonitrile at 60℃. The 11 kinds of QACs were baseline-separated on a ZORBAX SB-C18 column coupled with ternary mobile phases (0.1％formic-water,0.1％formic-methanol and 0.1％formic-acetonitrile),showing excellent linear relationship in the range of 0.001-0.5μg/mL (R2>0.9776). The limits of detection were 0.01-0.31 ng/g (S/N=3). The recoveries of 11 kinds of QACs in soil samples were 78.7％-99.3％ with relative standard deviations (RSDs)<12.9％,showing acceptable recoveries and repeatability. The results indicated that QACs could be extracted and cleaned-up within 4 h using this analytical method,with small volume of organic solvent consumed and less consumables materials.
