Determination of six benzene homologues in human blood by purge and trap-gas chromatography-mass spectrometry.
10.3760/cma.j.cn121094-20211220-00622
- Author:
Jing Qi LAI
1
;
Lang Jing DENG
2
;
Fen Dong FENG
1
;
Shao Yang LAI
1
;
Xiao Li YE
1
Author Information
1. Laboratory of Physical and Chemical, Shenzhen Luohu District Center for Disease Control and Prevention, Shenzhen 518020, China.
2. Public Health, School of Public Health, Jinan University, Guangzhou 510632, China.
- Publication Type:Journal Article
- Keywords:
Benzene homologues;
Blood;
Gas chromatography-mass spectrometry;
Purge and trap
- MeSH:
Humans;
Benzene/analysis*;
Gas Chromatography-Mass Spectrometry/methods*;
Xylenes/analysis*;
Benzene Derivatives/analysis*;
Toluene/analysis*
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2022;40(11):857-860
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To establish a purge and trap-gas chromatography-mass spectrometry method based on soil analysis model for the determination of six benzene homologues (benzene, toluene, ethylbenzene, m-xylene, p-xylene and o-xylene) in human blood. Methods: From September 2020 to May 2021, diatomite was used as a dispersant to add 2.0 ml blood sample and fully mixed. The sample was directly injected into the purging and collecting bottle after purging. The gas chromatography column was used for separation. The retention time locking was used for qualitative analysis and the selected ion scanning mode (SIM) was used for detection. The detection limit and recovery rate of the method were analyzed. Results: The linear range of the method for the determination of six benzene homologues in human blood was 0.02-10.00 ng/ml, the correlation coefficient was 0.9927-0.9968, the detection limit was 0.006-0.016 ng/ml, the recovery rate of sample spiking was 84.39%-102.41%, and the precision of the method was 3.06%-6.90%. Conclusion: Purge and trap-gas chromatography-mass spectrometry can simultaneously determine the contents of six benzene homologues in human blood. The pretreatment method is simple, time-saving, and the method has low detection limit, which provides a scientific basis for the detection of benzene homologues in human body.
