Determination method of iron and its inorganic oxide in the air of workplace
10.3760/cma.j.issn.1001-9391.2017.05.024
- VernacularTitle: 工作场所空气中铁及其无机氧化物的检测方法
- Author:
Shuang SONG
1
;
Haibin LI
;
Xingfu PAN
;
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:Case Reports
- Keywords:
Workplace;
Air pollutants, occupational;
Spectrophotometry, atomic absorption
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2017;35(5):389-393
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish the method for determination of iron and its inorganic oxide in the air of workplace.
Methods:The iron and its inorganic oxide was collected by MCE filter membrane and then digested by electric heating digestion apparatus. Atomic absorption spectrophotometer (AAS) or inductively coupled plasma optical emission spectrometry (ICP-OES) was used for the detection of iron and its inorganic oxide.
Results:The sampling efficiency was higher than 97%; under the 372.0 nm wavelength, the linearity of AAS was good at the range of 1.0~150.0 μg/ml, the minimum quantitation concentration was 0.28 mg/m3, the maximum quantitation concentration was 6.24 mg/m3, the recovery was ranged from 99%~102%, the RSD of intra-and inter-batch precision were 0.5%~1.2% and 1.0%~2.2%, respectively; the linearity of ICP-OES was good at the range of 0.1~500 μg/ml, the minimum quantitation concentration was 0.28 mg/m3, the maximum quantitation concentration was 20.8 mg/m3, the recovery was ranged from 101%~103%, the RSD of intra-and inter-batch precision were 0.5%~1.0% and 1.5%~1.6%, respectively.
Conclusion:The sampling method and determination method meet the requirements of analysis and apply to the collection and determination of iron and its inorganic oxide in the air of workplace.
