Determination of tungsten and cobalt in the air of workplace by ICP-OES
10.3760/cma.j.issn.1001-9391.2017.08.020
- VernacularTitle: 工作场所空气中钨和钴测定的电感耦合等离子体发射光谱法
- Author:
Jing ZHANG
1
;
Chunguang DING
;
Haibin LI
;
Shuang SONG
;
Huifang YAN
Author Information
1. National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
- Publication Type:Journal Article
- Keywords:
Tungsten;
Cobalt;
Filter membrane;
Inductively coupled plasma optical emission spectrometry
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2017;35(8):624-626
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish the inductively coupled plasma optical emission spectrometry (ICP-OES) method for determination of cobalt and tungsten in the air of workplace.
Methods:The cobalt and tungsten were collected by filter membrane and then digested by nitric acid, inductively coupled plasma optical emission spectrometry (ICP-OES) was used for the detection of cobalt and tungsten.
Results:The linearity of tungsten was good at the range of 0.01-1 000 μg/ml with a correlation coefficient of 0.999 9, the LOD and LOQ were 0.006 7 μg/ml and 0.022 μg/ml, respectively. The recovery was ranged from 98%-101%, the RSD of intra-and inter-batch precision were 1.1%-3.0% and 2.1%-3.8%, respectively. The linearity of cobalt was good at the range of 0.01-100 μg/ml with a correlation coefficient of 0.999 9, the LOD and LOQ were 0.001 2 μg/ml and 0.044 μg/ml, respectively. The recovery was ranged from 95%-97%, the RSD of intra-and inter-batch precision were 1.1%-2.4% and 1.1%-2.9%, respectively. The sampling efficiency of tungsten and cobalt were higher than 94%.
Conclusion:The linear range, sensitivity and precision of the method was suitable for the detection of tungsten and cobalt in the air of workplace.
