引用本文:王艳丽,周阳.活性炭吸附-毛细管柱气相色谱法测定大气中吡啶[J].环境监控与预警,2012,4(3):21-23
.Measurement?of?Pyridine?in?Air?by?Absorption?with?Activated?Carbon?coupled?with?Capillary?Gas?Chromatography[J].Environmental Monitoring and Forewarning,2012,4(3):21-23
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活性炭吸附-毛细管柱气相色谱法测定大气中吡啶
王艳丽,周阳1,2
1.天津市环境监测中心,天津 300191;2.天津市环境保护科学研究院,天津 300191
摘要:
以活性炭吸附大气中的吡啶,用二硫化碳解析,毛细管柱分离,FID检测器分析,采用保留时间定性,峰面积外标曲线法定量。方法在0?~367?mg/L范围内线性关系良好,当采样体积为20?L时,最低检出质量浓度为0.007?mg/m3,标准溶液平行测定的RSD≤2.0%,加标回收率为97.9%~104%。
关键词:  吡啶  活性炭  毛细管柱  气相色谱法  大气
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基金项目:
Measurement?of?Pyridine?in?Air?by?Absorption?with?Activated?Carbon?coupled?with?Capillary?Gas?Chromatography
Abstract:
The?concentration?of?pyridine?in?air?was?absorbed?by?activated?carbon,?desorbed?by?carbon?disulfide,?separated?by?capillary,?and?analyzed?by?FID.?It?was?identified?by?the?retention?time,?and?quantified?by?external?standard?curve?of?peak?area.?The?result?showed?that?the?linear?range?was?from?0?mg/L?to?367?mg/L.?When?sampling?volume?was?20L,?the?minimum?detection?concentration?was?0.007?mg/m3.?,The?recoveries?were?from?97.9%?to?104%(RSD≤2.0%).
Key words:  Pyridine  ?activated?carbon  ?capillary  ?gas?chromatography  ?air