Simultaneous determination of three organic fluorides in workplace air by portable gas chromatography-mass spectrometer / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 476-478, 2015.
Artigo
em Chinês
| WPRIM
| ID: wpr-350566
ABSTRACT
<p><b>OBJECTIVE</b>To establish a method for rapid determination of organic fluorides in the air of a fluorine chemical plant using portable gas chromatography-mass spectrometer (GC-MS).</p><p><b>METHODS</b>Standard samples of monochlorodifluoromethane, tetrafluoroethylene, and hexafluoropropylene of different concentrations were prepared by static volumetric method with high-purity nitrogen as the diluent gas. The samples were injected into the GC-MS by a hand-held probe. Retention time and characteristic ion were used for qualitative analysis, and the area of selected ion peak was used for quantitative analysis. The standard curves were then created for quantitative determination of the three organic fluorides.</p><p><b>RESULTS</b>The linear ranges for monochlorodifluoromethane, tetrafluoroethylene, and hexafluoropropylene by the method were 0.39-7.72, 0.45-8.84, and 0.61-12.20 mg/m3, respectively, the average recovery rates for the three concentrations were 102.8%, 96.0%, and 106.5%, respectively, and the average deviations were 2.1%, 5.1%, and 2.4%, respectively.</p><p><b>CONCLUSION</b>The portable GC-MS can be used for the simultaneous qualitative and quantitative analysis of monochlorodifluoromethane, tetrafluoroethylene, and hexafluoropropylene in the workplace air, and the method is simple, fast, and accurate.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Local de Trabalho
/
Poluentes Ocupacionais do Ar
/
Fluoretos
/
Fluorocarbonos
/
Clorofluorcarbonetos de Metano
/
Cromatografia Gasosa-Espectrometria de Massas
Tipo de estudo:
Pesquisa qualitativa
Idioma:
Chinês
Revista:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Ano de publicação:
2015
Tipo de documento:
Artigo
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