HS-GC/MS法检测食品塑料包装中的挥发性有机物

Determination of VOCs in the Plastic Food Package by HS-GC/MS

采用顶空-气相色谱/质谱联用技术检测了两种食品用塑料包装袋中可能残留的挥发性有机物:苯、乙苯、邻二甲苯、间/对二甲苯、异丙醇、乙酸乙酯、乙酸丁酯。结果证明,所建立的方法分离效果理想,线性关系良好,线性相关系数均大于0.999,检出限均达到10-3数量级,能够满足实际分析的要求。

The possible VOCs （benzene, ethylbenzene, o-xylene, m/p-xylene, isopropanol, ethyl acetate, butyl acetate） from two kinds of plastic food package were detected by headspace-gas chromatography/ mass spectrometry （HS-GC/MS）. It was proved that the established method has ideal separating performance, good linearity with correlation coefficients better than 0. 999, and detection limits reaching the level of 10^-3. Therefore, the method meets the needs of practical analysis.