小波变换辅助的塑料膜增塑剂含量气相色谱-质谱同时测定  

Simultaneous determination by gas chromatographic-mass spectrometric analysis of plasticizers in plastic film assisted by continuous wavelet transform

作　　者：王国庆[1] 杨伟芳[1] 王素方 师明霞 庞文月 孙晓丽[1] 陶海[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002 [2]河南出入境检验检疫局技术中心,河南郑州450003

出　　处：《郑州轻工业学院学报（自然科学版）》2012年第5期25-29,共5页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：国家自然科学基金项目(21075113);河南省高校科技创新人才支持计划项目(2009HASTIT026)

摘　　要：以正己烷为提取剂采用均质-超声法提取PVC塑料膜中的增塑剂,以气相色谱-质谱法(GC-MS)同时测定9种增塑剂含量,其中邻苯二甲酸二异壬酯(DINP)和邻苯二甲酸二异癸酯(DIDP)2种增塑剂的总离子流图所对应的色谱峰重叠严重,利用连续小波变换(CWT)对重叠严重的色谱峰进行解析,结果其色谱峰得到良好分离.CWT辅助解析重叠色谱的均质-超声提取GC-MS法为PVC膜中多种增塑剂同时测定提供了新途径.Plasticizers in PVC plastic films were extracted by homogeneous-ultrasonic using hexane as the solvent. Using gas chromatography-mass spectrometry （GC-MS） determination of nine plasticizers in PVC films,the total ion current （TIC） chromatograms of diisononyl phthalate （DINP） and diisononyl phthalate （DINP） were seriously overlapped. For resolution of the overlapped TIC chromatograms of DINP and DIDP,continuous wavelet transform （CWT） was introduced. The results showed that they overlapped peaks were well separated. The proposed CWT assisted homogeneous-ultrasonic extraction and GC-MS analysis provides an alternative novel way for simultaneous determination of multiple plasticizers in PVC films.

关 键 词：PVC 邻苯二甲酸酯类 均质-超声提取 气相色谱-质谱 小波变换 

分 类 号：O65[理学—分析化学]