顶空-毛细管气相色谱法同步测定水中吡啶丙酮乙腈

建立了顶空-毛细管气相色谱测定水中吡啶丙酮乙腈的方法,不用有机溶剂萃取和浓缩,减少了损失和对环境的污染,具有灵敏度高、检出限低、定量准确、操作简便等特点。当取样量为5ml时,检出限可达到0.006~0.03mg/L级,相对标准偏差为1.0%~2.3%,加标回收率在78.0%~100.2%之间,完全适合水中吡啶丙酮乙腈的测定。

Headspace-Capillary Gas Chromatography Determination of Pyridine

Established Headspace-pyridine in water by capillary gas chromatography method of acetone, acetonitrile,Without organic solvent extraction and concentration, reducing losses and environmental pollution, A high sensitivity, low detection limit, accurate, easy to operate and so on. When the sampling volume of 5ml, the detection limit can reach 0.006~0.03mg/L level, The relative standard deviation of 1.0%~2.3%, and the recovery at between 78.0%~100.2%. Perfectly suited to water, acetone, acetonitrile and pyridine were determined.