Determination of lithium and its compounds in workplace air by inductively coupled plasma mass spectrometry
10.11763/j.issn.2095-2619.2020.03.020
- Author:
Zhanhong YANG
1
;
Chuan WU
1
;
Ming DONG
1
;
Xiaoting LUO
1
;
Weihui WANG
1
;
Junyi HUANG
1
;
Aihua ZHANG
1
Author Information
1. Guangdong Province Hospital for Occupational Disease Prevention and Treatment;Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment Guangzhou, Guangdong 510300, China
- Publication Type:Journal Article
- Keywords:
Lithium;
Compounds;
Inductively coupled plasma;
Mass spectrometry;
Workplace;
Air
- From:
China Occupational Medicine
2020;47(03):343-346
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To establish a method for testing lithium and its compounds in workplace air by inductively coupled plasma mass spectrometry(ICP-MS). METHODS: Lithium and its compounds in workplace air were collected by microporous filtration membrane. After elution with nitric acid solution in volume fraction of 1.0%, the samples were determined by ICP-MS. RESULTS: The linearity range of lithium mass concentration was 10.00-500.00 μg/L, and the correlation coefficient was 0.999 8. The detection limit was 0.03 g/L and the lower limit of quantitation was 0.10 μg/L. The minimum detection concentration and the minimum quantitative concentration of lithium were 4.0 and 10.0 ng/m~3 respectively. The recovery rate of standard addition was 96.18%-100.91%.The within-run and the between-run relative standard deviation were 1.17%-2.17% and 0.89%-1.54% respectively. Lithium and its compound samples could be stored at room temperature for at least 28 days. CONCLUSION: The method could be used for detection of lithium and its compounds in workplace air.
