GC-MS法同时测定氯化石蜡等含卤素类增塑剂的研究

米面及其制品中可能非法加入含卤素类增塑剂,目前鲜见检测方法的报道。本文应用气相色谱-质谱联用（GC-MS）同时检测氯化石蜡等9种含卤素类增塑剂。优化条件为:采用HP-5MS色谱柱;进样口温度280℃;载气1.2mL/min;色谱-质谱接口温度270℃;采用程序升温,起始柱温35℃,保留1min,以10℃/min升温至220℃,再以20℃/min升温至300℃,保留5min。该方法条件下,目标物质检测限在0.01μg/L¹5mg/L,峰面积标准偏差均≤0.061,保留时间标准偏差均≤0.007,分离效果较好。 

Simultaneous determination halogen-containing plasticizers such as chlorinated paraffin by GC-MS

Rice and its products may be illegally added halogen-containing plasticizers, but detection methods rarely reported. In this paper, chlorinated paraffin and other 9 kinds of halogen-containing plasticizers were simultaneous detected by gas chromatography-mass spectrometry (GC-MS) . Optimum conditions were:using HP-5MS column, inlet temperature 280℃, carrier gas 1.2mL/min, chromatography-mass spectrometry interface temperature 270℃. Using temperature-programmed:starting column temperature 35℃, keeping 1min, at 10℃/min heating to 220℃, then 20℃/min heating to 300℃, keeping 5min. Under these conditions, the retention time was no more than 0.007, the standard deviation of peak area was no more than 0.061, detection limited of the of the9 kinds of halogen-containing plasticizers varied between 0.01μg/L¹5mg/L. This method was well separated.