[Determination of methylmercury in urine by direct mercury analyzer].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
; 41(4): 304-306, 2023 Apr 20.
Article
in Zh
| MEDLINE
| ID: mdl-37248187
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.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Mercury
/
Methylmercury Compounds
Language:
Zh
Journal:
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
Year:
2023
Document type:
Article