Determination of thallium and its soluble compounds in workplace air by inductively coupled plasma mass spectrometry
10.20001/j.issn.2095-2619.20230815
- VernacularTitle:电感耦合等离子体-质谱法测定工作场所空气中铊及其可溶性化合物
- Author:
Zhanhong YANG
1
;
Chuan WU
;
Ming DONG
;
Xiaoting LUO
;
Weihui WANG
;
Junyi HUANG
;
Weifeng RONG
;
Banghua WU
Author Information
1. Institute of Chemical Surveillance, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, Guangdong 510300, China
- Publication Type:Journal Article
- Keywords:
Thallium;
Inductively coupled plasma mass spectrometry;
Workplace;
Air
- From:
China Occupational Medicine
2023;50(4):447-450
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for the determination of thallium and its soluble compounds in workplace air using microporous filter membrane sampling and inductively coupled plasma mass spectrometry (ICP-MS). Methods Thallium and its soluble compounds in workplace air were collected using microporous filter membranes, digested with nitric acid, quantified using lutetium internal standard method, and detected by ICP-MS. Results The linear range of thallium was 0.00 to 600.00 μg/L, with the correlation coefficient of 1.000. The detection limit was 0.08 μg/L, and the lower limit of quantification was 0.26 μg/L. The minimum detection concentration and minimum quantitation concentration of thallium of 75.00 L workplace air were 1.0×10-5 and 3.0×10-5 mg/m3, respectively. The minimum detection concentration and minimum quantitation concentration of thallium of 480.00 L workplace air was 2.0×10-6 and 5.0×10-6 mg/m3, respectively. The recovery rate of spiking was 100.82%-103.44%, and the relative standard deviation within- and between-batches was 1.50%-3.32% and 1.32%-3.11%, respectively. The sample could be stored at room temperature for at least 14 days. Conclusion This method can be used for the detection of thallium and its soluble compounds in workplace air.
