摘要
利用固相萃取-气相色谱对塑料包装材料中的6种内分泌干扰素邻苯二甲酸二甲酯（DMP）、邻苯二甲酸二乙酯（DEP）、邻苯二甲酸二丁酯（DBP）、邻苯二甲酸二丁基苄基酯（BBP）、邻苯二甲酸二（2-乙基己基）酯（DEHP）和邻苯二甲酸二正辛酯（DNOP）进行了研究.采用无水乙醇超声辅助提取样品,低温处理去除杂质,结合ENVI-18固相萃取技术净化提取液,以气相色谱-氢火焰离子化检测器测定其含量.各待测组分的最小检出量均小于0.04 mg/L,回收率为92.8%-116.7%,相对标准偏差小于8.21%.
A detection method is developed for the determination of six endocrine disruptors-phthalate esters in plastic packaging materials including Di-methylphthalate （DMP）, Di-ethylphthalate （DEP）, Dibutylphthalate （DBP）, Butylbenzylphthalate （BBP）, Di（2-ethylhexyl）p-hthalate （DEHP） and Di-n-octylphthalate （DNOP）. These phthalate esters are analyzed by gas chromatography combined with solid phase extraction （SPE）. The samples are prepared by ultrasonic-assisted extraction with ethanol. Then the extract is purified by removing impurity with low temperature treatment and SPE with ENVI-18 column. Finally the samples are analyzed by using gas chromatography with flame ionization detector （GC- FID）. The limits of detection of the 6 pollutants were all below 0.04 mg/L. The average recoveries were between 92.8% and 116.7 % with relative standard deviation （RSD） less than 8.21%.
出处
《河北大学学报（自然科学版）》
CAS
北大核心
2009年第3期284-290,共7页
Journal of Hebei University(Natural Science Edition)
基金
河北省教育厅重点资助项目(ZH200805)
关键词
邻苯二甲酸酯
气相色谱法
塑料包装材料
超声辅助提取
固相萃取
Phthalate esters （PAEs）
gas chromatography
plastic packaging materials
ultrasonic-assisted extraction
solid phase extraction
