Determination of lithium and its compounds in workplace air by inductively coupled plasma mass spectrometry / 中国职业医学
China Occupational Medicine
;
(6): 343-346, 2020.
Article
in Chinese
| WPRIM
| ID: wpr-881908
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
China Occupational Medicine
Year:
2020
Type:
Article
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