Preparation of air sampling tube for chlorobenzene compounds and establishment of its matching detecting method
10.11763/j.issn.2095-2619.2021.04.013
- Author:
Wei-feng RONG
1
;
Bang-hua WU
1
;
Wei-jie LING
;
Xing-bin HUANG
;
Feng-jun DENG
;
Luo-piao XU
;
Jing YUAN
1
;
Jia-heng HE
1
;
Rui-bo MENG
1
Author Information
1. Guangdong Province Hospital for Occupational Disease Prevention and Treatment,Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment Guangzhou,Guangdong 510300,China
- Publication Type:Journal Article
- Keywords:
Air sampling tube;
Chlorobenzene compounds;
Workplace;
Air;
Detection method
- From:
China Occupational Medicine
2021;48(04):425-430
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To prepare and develop a GDH-2 air sampling tube for detecting 12 kinds of chlorobenzenes(CBs) in workplace air and to establish a matching detecting method. METHODS: The self-developed GDH-2 air sampling tube was filled with ion exchange resin and activated carbon, and the mass ratio was 10 ∶1. The GDH-2 air sampling tube was used to collect 12 kinds of CBs with coexistence of gaseous and aerosol in the air. After elution with toluene, they were separated on a chromatographic column and determined by microcell electron capture detector. RESULTS: The quantitative detecting range of the method was 0.51×10~(-3)-6 000.00 mg/L, with the correlation coefficients greater than 0.999 4. The minimum detection concentration was 0.02-61.99 μg/m~3, and the minimum quantitative concentration was 0.05-206.62 μg/m~3. The average desorption efficiency was 90.8%-104.0%. The within-run relative standard deviation(RSD) was 1.0%-5.7%, and the between-run RSD was 3.0%-7.3%. The samples can be stored at room temperature for at least 26 days. CONCLUSION: The self-developed GDH-2 air sampling tube and its matching measuring method can be used for the collection and determination of the 12 kinds of CBs in the air of workplace.
