超声波提取-气相色谱法测定海产品中的多氯联苯  

Determination of Polychlorinated Biphenyls in Sea Products Using Gas Chromatography Combined with Ultrasonic Extraction

作　　者：赵财[1] 邢维芹[1] 范璐[1] 古德宁[1] 李立平[1] 卢奎[1] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《食品科学》2009年第4期149-153,共5页Food Science

基　　金：河南省重大科技攻关计划项目(0422031200)

摘　　要：本研究探讨了影响超声波提取海产品中多氯联苯的因素,包括提取温度、时间、功率、液料比和层析条件。根据结果选择的优化超声波条件为:温度40℃,超声波功率540W,时间120min,液料比7:1;层析时淋洗液的起始收集体积为10ml,共收集10ml。样品中的多氯联苯用气相色谱法测定。在选定条件下,方法对多氯联苯的回收率在72.66%～91.56%之间,平均值87.93%。研究还用样品对选定方法进行了验证,结果表明,本研究所建立的方法可行。Parameters affecting the ultrasonic extraction of polychlorinated biphenyls(PCBs) from sea products,including temperature,time,power and liquid(n-hexane) to solid ratio,and effluent collection in column chromatography were investigated.Based on experimental results,the following conditions were chosen:extracting sample at 40 ℃ at 540 W for 120 min with the liquid to solid ratio of 6:1;beginning to collect the effluent up to 10 ml when there was 10 ml of effluent flowing out of silica gel column.The PCBs in ...

关 键 词：超声波提取 气相色谱法 多氯联苯 海产品 

分 类 号：R155.5[医药卫生—营养与食品卫生学]