活性炭吸附-毛细管柱气相色谱法测定大气中吡啶

王艳丽<sup>1</sup>; 周阳<sup>2</sup>

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