Research and development of an air sampling tube for chlorobenzene compounds and its supporting determination method.
10.3760/cma.j.cn121094-20210607-00279
- VernacularTitle:氯苯类化合物空气采样管的研发及其配套测定方法研究
- Author:
Wei Jie LING
1
;
Wei Feng RONG
2
;
Shi Hua WU
1
;
Guan Hao GUO
1
;
Jiu CHEN
1
;
Yi Min LIU
1
Author Information
1. Guangzhou Twelfth People's Hospital (Guangzhou Occupational Disease Prevention and Treatment Hospital) Occupational Health Assessment and Monitoring Center, Guangzhou 510620, China.
2. Guangdong Province Hospital for Occupational Disease Prevention and Treatment Poison Control Station, Guangzhou 510300, China.
- Publication Type:Journal Article
- Keywords:
Air;
Air sample tube;
Chlorobenzene compound
- MeSH:
Air Pollutants, Occupational/analysis*;
Chlorobenzenes/analysis*;
Chromatography, Gas/methods*;
Research;
Workplace
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2022;40(8):613-619
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To establish a GDH-3 air sample tube for simultaneous determination of twelve kinds of chlorobenzene compounds (CBs) in workplace air by gas chromatography. And to established a matching determination method. Methods: In October 2020, the vapor and aerosol CBs in workplace air were collected by GDH-3 air sampling tube, and desorption and elution with 3.00 ml toluene for 15 min, then the solution separated by DB-23 capillary column, and finally detected with microcell electron capture detector. Results: The quantitative determination ranges of twelve isomers of CBs were 0.71×10(-3)-2000.00 mg/L, with the correlative coefficients were 0.99967-0.99998. The minimum detectable concentrations were 0.04-112.63 μg/m(3), and the minimum quantification concentrations were 0.14-375.42 μg/m(3) (15.00 L sample, 3.00 ml sample solution) . The average elution efficiencies were 96.00%-104.00%. The within-run relative standard deviations (RSDs) were 2.54%-6.12%, and the between-run RSDs were 3.85%-7.87%. Sealed samples could be stable at room temperature for at least 15 days. Conclusion: GDH-3 air sample tube can be used for simultaneous determination of twelve kinds of CBs in workplace air by gas chromatography. The established supporting measurement method meets the measurement requirements of the occupational health standard detection method, and the it's suitable for the simultaneous determination of 12 kinds of CBS in the air.
