研究了ＭＫ－１型光纤压力自控微波溶样系统用于微波萃取的可行性．以合成土样为对象，比较系统地研究了微波萃取ＰＡＨｓ的条件、萃取效率以及溶剂、水分、土壤基体物质等因素的影响．在微波作用下丙酮－正己烷（体积比为１∶１）和二氯甲烷对ＰＡＨｓ的萃取能力相近；试样中小于２０％的水分使丙酮－正己烷（体积比为１∶１）的萃取能力提高，而水分高于５％则使二氯甲烷的萃取能力略有降低．在选定条件下，萘、苊烯、芴、菲、蒽、、苯并（ａ）芘的回收率在８２．２％～９４．１％之间． The feasibility of MK-1 optical fiber pressure controlled microwave sample-dissolving system for microwave extraction was studied. Synthetic soil samples for the object, more systematically studied the conditions of microwave extraction PAHs, extraction efficiency and solvent, water, soil matrix material and other factors. Under the action of microwave, acetone-n-hexane (1: 1 by volume) and methylene chloride have similar abilities to extract PAHs; less than 20% moisture in the sample makes the extraction of acetone-n-hexane The ability to increase, while water is higher than 5% of the dichloromethane extraction capacity decreased slightly. Under the selected conditions, the recoveries of naphthalene, camphene, fluorene, phenanthrene, anthracene, acenaphthene and benzo (a) pyrene ranged from 82.2% to 94.1%.