Detection of chloromethyl methyl ether and bis-chloromethyl ether in workplace air by gas chromatography / 中国职业医学
China Occupational Medicine
;
(6): 75-79, 2017.
Artigo
em Chinês
| WPRIM
| ID: wpr-881583
ABSTRACT
OBJECTIVE:
To establish a methodology for simultaneous detection of chloromethyl methyl ether( CMME) and bis-chloromethyl ether( BCME) in workplace air by gas chromatography.METHODS:
CMME and BCME in workplace air were collected with absorption solution which was also derivatization solution. The derivative products were extracted using n-hexane alkaline medium. The extracts were separated by capillary column and detected with electron capture detector.The quantification was performed by use of standard curves.RESULTS:
The linearity ranges of CMME and BCME were2. 00-80. 00 and 1. 32-52. 80 ng,respectively. The correlation coefficients were both 0. 999 93. The minimum detectable concentrations were both 0. 030 μg / m3 and the minimum quantification concentrations were both 0. 100 μg / m3( 7. 50 L sample). The recovery rates were 99. 35%-101. 00% and 97. 99%-101. 70% respectively. The within-run relative standard deviations( RSD) were 2. 73%-4. 46% and 2. 61%-3. 82% respectively,and the between-run RSD were3. 10%-5. 50% and 3. 89%-5. 38% respectively. The sampling efficiencies were 92. 43%-96. 25% and 91. 43%-94. 03%respectively. The samples were stable at room temperature for at least 15 days.CONCLUSION:
This method is suitable for simultaneous detection of CMME and BCME in workplace air.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo diagnóstico
Idioma:
Chinês
Revista:
China Occupational Medicine
Ano de publicação:
2017
Tipo de documento:
Artigo
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