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Qualitative analysis of volatile organic components in chemicals using headspace gas chromatography-mass spectrometry / 中国职业医学
China Occupational Medicine ; (6): 325-329, 2023.
Article in Zh | WPRIM | ID: wpr-1003862
Responsible library: WPRO
ABSTRACT
Objective To establish a rapid qualitative analysis method for volatile organic components in chemicals. Methods Headspace gas chromatography-mass spectrometry was used to qualitatively determine 19 volatile organic components, including benzene, 1,2-dichloroethane, and n-hexane, in chemicals. Different sample amounts, heating temperatures, heating times, and sample volumes were analyzed to assess their effects on detection results and optimize sampling conditions. Results Based on the set chromatography, the optimal sampling process of this method was as follows: 5.0 g sample in a 20.0 mL headspace bottle, incubated at 40 ℃ for 30 minutes in a constant-temperature drying incubator, and a 1.00 mL headspace gas injection. The within-run and between-run relative standard deviations of all components ranged from 0.00% to 21.05% and 0.00% to 33.33%, respectively. The samples stored in sealed glass containers were stable at room temperature for at least 60 days. Conclusion This method offers simplicity, good reproducibility, and stability, making it suitable for rapid qualitative analysis of volatile organic components in chemicals.
Key words
Full text: 1 Index: WPRIM Language: Zh Journal: China Occupational Medicine Year: 2023 Type: Article
Full text: 1 Index: WPRIM Language: Zh Journal: China Occupational Medicine Year: 2023 Type: Article