Simultaneous determination of three chlorobenzene compounds in workplace air by portable gas chromatography-mass spectrometry / 中国职业医学
China Occupational Medicine
;
(6): 339-342, 2020.
Artigo
em Chinês
| WPRIM
| ID: wpr-881907
ABSTRACT
OBJECTIVE:
To establish a method for simultaneous determination of chlorobenzene, p-dichlorobenzene and o-dichlorobenzene in workplace air by portable gas chromatography-mass spectrometry(GC-MS).METHODS:
The portable GC-MS heat tracing sampling probe was used for sampling. Samples were separated with LTM DB-5 MS rapid chromatographic column. The qualitative analysis was based on retention times and characteristic ions, and the quantification was based on standard curves.RESULTS:
The linear correlation coefficient of this method was higher than 0.999 6. The minimum detectable concentrations were 0.03, 0.03 and 0.06 mg/m~3, and the minimum quantification concentrations were 0.10, 0.10 and 0.20 mg/m~3. The recovery rates were 84.68%-92.61%, 86.27%-93.92% and 82.31%-92.36% respectively for three chlorobenzenes compounds. The within-run relative standard deviations(RSD) were 8.51%-9.34%, 7.93%-9.19%, 5.47%-7.48% respectively for three chlorobenzenes compounds, the between-run RSD were 7.29%-9.73%, 8.08%-10.04% and 5.19%-5.98% respectively for three chlorobenzenes compounds.CONCLUSION:
The portable GC-MS could be used for qualitative and quantitative detection of three chlorobenzenes compounds in workplace air.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Pesquisa qualitativa
Idioma:
Chinês
Revista:
China Occupational Medicine
Ano de publicação:
2020
Tipo de documento:
Artigo
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