Determination of aluminum in blood of occupational workers by ICP-MS
Shang Nan, Wang Shuo, Wang Shanshan, Sun Han, Qin Xiujun, Zhang Ping, Fan Rong, Chen Jin, Huang Tao, Wang Yanhong, Niu Qiao, Zhang Qinli
Published 2019-07-20
Cite as Chin Ind Hyg Occup Dis, 2019, 37(7): 540-543. DOI: 10.3760/cma.j.issn.1001-9391.2019.07.015
Abstract
ObjectiveTo establish a method for the determination of aluminum in blood, and to detect the aluminum content in the blood of occupational aluminum workers.
MethodsThe morning blood of the aluminum workers was collected in an anticoagulation tube, and the supernatant was centrifuged. The supernatant was diluted with 4% nitric acid containing 1% Triton for 24 h at room temperature, and the supernatant was centrifuged. The supernatant was filtered and the blood aluminum concentration was measured by inductively coupled plasma mass spectrometry and quantified by external standard method.
ResultsThe detection limit of ICP-MS method was 0.39 μg/L, the linear range was 0-160 μg/L, the recoveries were 98.24%-99.65%, and the precision was 0.19%-0.28%. The recoveries of graphite furnace atomic absorption spectrophotometry (GFAAS) were 97.17%-111.18%, and the precision was 0.35%-0.44%. The average blood aluminum concentration of aluminum workers in the normal control group was (19.87±10.65) μg/L. The average blood aluminum concentration of aluminum workers in the expose group was (31.12±11.43) μg/L.
ConclusionThe method of ICP-MS for the determination of aluminum concentration in blood has a simple pretreatment process, high recovery rate, low detection limit and high precision, which is suitable for popularization.
Key words:
Aluminum; Occupational contact; Blood; Inductively coupled plasma mass spectrometry
Contributor Information
Shang Nan
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
The First Hospital of Shanxi Medical University, Taiyuan 030001, China
Wang Shuo
Beijing Chaoyang District Center for Disease Control and Prevention, Beijing 100013, China
Wang Shanshan
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
Sun Han
Beijing Chaoyang District Center for Disease Control and Prevention, Beijing 100013, China
Qin Xiujun
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
China Institute for Radiation Protection, Taiyuan 030006, China
Zhang Ping
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
Fan Rong
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
Chen Jin
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
Huang Tao
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
Wang Yanhong
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
Niu Qiao
School of Public Health, Shanxi Medical University, Taiyuan 030001, China
Zhang Qinli
School of Public Health, Shanxi Medical University, Taiyuan 030001, China