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本文介绍了用气相色谱法测定萃取剂中杂质C3 ～C5烃的含量 ,检测极限可达 10 -5。采用HP 6 890气相色谱仪HP5 ,5 0m× 0 32mm的聚乙二醇毛细管柱 ,膜厚 0 5 μm ,氢焰离子化检测器 ,用内标法定量 ,结果有较高的灵敏度和准确度
This paper describes the determination of impurities in the extractant C5 ~ C5 hydrocarbons by gas chromatography, the detection limit of up to 10 -5. Using HP 6 890 gas chromatograph HP5, polyethylene glycol capillary column of 5 0m × 0 32mm, membrane thickness 0 5 μm, hydrogen flame ionization detector, quantified by internal standard method, the result has higher sensitivity and accuracy