Determination of acetochlor and its metabolites in urine using liquid chromatography-tandem mass spectrometry / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
; (12): 373-377, 2022.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-935814
Responsible library:
WPRO
ABSTRACT
Objective:
A method for the determination of acetochlor and its metabolites in urine by liquid chromatography-tandem mass spectrometry (LC-MS/MS) was established.Methods:
After cleaned-up by a HLB extraction cartridges, the urine was eluted with 1% acetic acid acetonitrile solution. The target compounds were separated by ACQUITY UPLC®HSS T3 Column (2.1 mm×100 mm×1.8 μm) by using 1% formic acid solution and acetonitrile as mobile phase with gradient elution program, and analyzed in positive electrospray ionization mode by liquid chromatography tandem mass spectrometry.Results:
All the target compounds showed good linear relationships in the range of 1-50 μg/L, and the correlation coefficients (r) were higher than 0.997. The recoveries rates at three different spiked levels for all target compounds in blank matrices were 107.6%-129.1%, and the relative standard deviations (RSD) were 1.5%-9.9% (n=6) . The limits of detection and quantitation of the method were 0.04-0.11 μg/L and 0.15-0.42 μg/L, respectively, and target substances were detected in all urine samples from occupational exposure workers to acetochlor.Conclusion:
This method is suitable for rapid screening and analysis of acetochlor and metabolites in urine with the advantages of accuracy, rapidity, simplicity, high sensitivity and good specificity.
Full text:
Available
Health context:
SDG3 - Target 3.9 Reduce the amount of deaths produced by dangerous chemicals and the pollution of the air, water and soil
Health problem:
Occupational Exposures
Database:
WPRIM (Western Pacific)
Main subject:
Acetonitriles
/
Toluidines
/
Chromatography, High Pressure Liquid
/
Chromatography, Liquid
/
Tandem Mass Spectrometry
/
Solid Phase Extraction
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Year:
2022
Document type:
Article