毛细管柱气相色谱法测定作业场所空气中1-丁烯和1,3-丁二烯
Chemical Analysis and Meterage（2015）
Abstract
建立作业场所空气中1-丁烯和1,3-丁二烯的直接进样气相色谱测定方法.利用TEDLAR气袋采集空气样品,以VARIAN–PLOT大口径毛细管柱分离,六通阀进样,FID检测器检测.1-丁烯,1,3-丁二烯的线性范围分别为23.3~466 mg/m3,11.3~225 mg/m3,检出限(3S/N)分别为0.08,0.03 mg/m3,相关系数均大于0.999.测定结果的相对标准偏差为0.8%~3.1% (n=6),回收率在92.0%~104.3%之间.该方法简便、快速、准确,灵敏度高,适用于作业场所空气中1-丁烯和1,3-丁二烯的检测.
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Key words
1-butene,3-butadiene,capillary gas chromatography,workplace air
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