顶空-气质联用色谱法测定空气清新剂中可挥发性有机物含量

Determination of Volatile Organic Compounds in Air Freshener with Headspace Gas Chromatography-Mass Spectrometer(GC-MS)

建立气质-顶空自动进样系统联用测定空气清新剂中37种可挥发性有机物含量的检测方法。对样品的取样方法和气质条件进行优化。在优化的条件下,样品中各个可挥发性有机物得到良好的分离,并以外标法定量。本方法精密度高,线性相关系数不小于0.996;加标回收率为80%～120%; RSD均小于10.0%;最低检出限为0.003～3.06μg/g。

This paper was established Headspace-GC-MS method for determination of 37 kinds of volatile organic compounds in air freshener. For the sample of sampling methods and Headspace-GC-MS conditions were optimized. Under optimized conditions, the sample of each material to get good separation solvent residues, and external standard method of quantitative. Method is of high precision, the linear correlation coefficient was larger than 0.996, with respect to the average recovery was 80%~120%, the RSD were less than 10%,the minimum detection limit of 0.003~3.06 μg/g.