Determination of titanium dioxide in the air of workplace by inductivehy coupled plasma optical emission spectrometry
10.3760/cma.j.issn.1001-9391.2017.06.018
- VernacularTitle: 工作场所空气中二氧化钛测定的电感耦合等离子体发射光谱法
- Author:
Haibin LI
1
;
Shuang SONG
;
Xingfu PAN
;
Xuewen HOU
;
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:
Titanium dioxide;
Workplace;
Filter membrane;
Spectrometry
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2017;35(6):469-471
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish the method for determination of titanium dioxide in the air of workplace by inductivehy coupled plasma optical emission spectrometry (ICP-OES) .
Methods:The titanium dioxide was collected by filter membrane and then digested by microwave digestion apparatus in the mixed solvents (HNO3∶HF∶H2O=4∶1∶1) , dilutedto 25 ml and detected by ICP-OES.
Results:The sampling efficiency was higher than 95%; the linearity of ICP-OES was good at the range of 10-500 μg/ml, the minimum quantitation concentration was 0.72 mg/m3 (as collecting 150 L air sample) , the maximum quantitation concentration was 21.7 mg/m3 (as collecting 960 L air sample) , the recovery was ranged from 99.0%-102.0%, the RSD of intra- and inter-batch precision were 0.5%-3.2% and 1.7%-3.5%, respectively.
Conclusion:The sampling method and determination method meet the requirements of guide for establishing occupational health standards-part 4: determinatin methods of air chemicals in workplace (GBZ/T 210.4-2008) , and areapplys to the collection and determination of TiO2 in the air of workplace.
