Budzinski H, Letellier M, Thompson S, LeMenach K, Garrigues P
LPTC, UMR 5472 CNRS, University Bordeaux I, Talence, France.
Fresenius J Anal Chem. 2000 May;367(2):165-71. doi: 10.1007/s002160051618.
A microwave-assisted protocol has been developed using focussed microwaves at atmospheric pressure for the extraction of PAHs and PCBs from sediments. It combines extraction and purification assisted by microwaves. This protocol has been applied to the quantification of 12 individual PAHs, 8 individual PCBs and 8 PCB coeluted mixtures from two Standard Reference Materials and one natural sediment. The results for both classes of compounds (PAHs and PCBs) are good in terms of recoveries, which are always greater than 70% and in most cases around 100%. The reproducibility is also good with coefficients of variation below 10% in most cases. This protocol has the great advantage of saving time, the time dedicated to the preparation / extraction assisted by microwaves being reduced to less than half an hour.
已开发出一种微波辅助方法，利用常压聚焦微波从沉积物中提取多环芳烃（PAHs）和多氯联苯（PCBs）。该方法结合了微波辅助提取和净化。此方法已应用于对两种标准参考物质和一种天然沉积物中的12种单个多环芳烃、8种单个多氯联苯以及8种多氯联苯共洗脱混合物进行定量分析。两类化合物（多环芳烃和多氯联苯）的回收率结果良好，始终大于70%，且在大多数情况下接近100%。大多数情况下变异系数低于10%，重现性也良好。该方法具有节省时间的巨大优势，微波辅助制备/提取所需时间减少至不到半小时。
