Determination of methylmercury in urine by direct mercury analyzer.
10.3760/cma.j.cn121094-20211110-00556
- Author:
Fu WANG
1
;
Yun Ting ZHANG
2
;
Fan SU
2
;
Cheng Peng HUANG
1
;
Lan LUO
1
Author Information
1. Department of Chemical Laboratory, Longhua District Center for Disease Control and Prevention, Shenzhen 518109, China.
2. Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
- Publication Type:Journal Article
- Keywords:
Direct mercuryanalyzer;
Methylmercury;
Solvent extraction;
Urine
- MeSH:
Mercury;
Methylmercury Compounds
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2023;41(4):304-306
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To develop asolvent extraction-direct mercury analyzer method for determination of methylmercury in urine. Methods: After the urinehydrolyzesd by hydrobromic acid, methylmercury was extracted by tolueneand reverse-extracted from L-cysteine solution, it was then detectedbydirect mercuryanalyzer. Results: The linear range was 0.2-50.0 μg/L, and the related coefficient was 0.9999. The relative standard deviations (RSD) within the group were 5.04%-6.64%, and the RSD between the group were 5.65%-8.11 %. The average recovery efficiencies were 85.4%-95.5%. The detection limitation was 0.0482 μg/L and the quantification concentrations was 0.1607 μg/L. Conclusion: The method, which has low detection limit, high sensitivity, easy to operate, is stability for the determination of methylmercury in urine.
