Direct determination of manganese in urine by Graphite Furnace Atomic Absorption Spectrometry
10.3760/cma.j.issn.1001-9391.2018.07.016
- VernacularTitle: 尿中锰直接测定的石墨炉原子吸收光谱法
- Author:
Yiran LIN
1
;
Tiandi LI
;
Wen ZHANG
;
Jianpei YUN
;
Fen LIU
;
Xianqing HUANG
Author Information
1. Shenzhen Prevention and Treatment center for Occupational Diseases, Shenzhen 518001, China
- Publication Type:Journal Article
- Keywords:
AAS;
manganese in urine
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2018;36(7):535-537
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a method for the determination of manganese in urine by graphite furnace atomic absorption spectrometry (AAS) without the use of matrix modifier.
Methods:The urine samples were 5 times diluted with 1% nitric acid then directly determined by AAS. Zeeman was used for background correction.
Results:The linear range for determination of manganese in urine was 5~60 μg/L (urine) . The correlation coefficient was greater than 0.995 with the detection limit of 1.5 μg/L and with the lower limit of quantification of 5.0 μg/L. The relative standard deviations (RSDs) of within-run precision was between 1.1%~4.3%, the RSDs of between-run precision was between 3.3%~7.0%. The average recovery was 102.6%. The samples can be stored for 14 days at room temperature, 4℃, -8 ℃ and -35 ℃.
Conclusion:The method is feasible for determination of manganese in urine.
