探讨了一种快捷有效的样品预处理方法,即采用聚四氟乙烯高压罐微波消化法处理样品。通过正交试验分析得到较优的消化条件,并在此条件下做锌、铁、锰的加标回收试验,得回收率分别为97.0％、94.3％、90.6％,相对标准偏差分别为1.2％、4.1％、3.4％。另外,还做了扩展试验,与国标法对照的试验。通过试验和比较,证实该消化方法具有安全、省时、方便等优点。 A quick and effective sample pretreatment method was discussed, that is, the samples were treated by microwave digestion with a Teflon autoclave. The optimal digestion conditions were obtained through orthogonal test. Under these conditions, the recoveries of spiked zinc, iron and manganese were 97.0%, 94.3% and 90.6%, respectively, and the relative standard deviations were 1.2% , 4.1%, 3.4%. In addition, the expansion test has also been done, with the national standard control test. Through the experiment and comparison, it is proved that the digestion method has the advantages of safety, time saving and convenience.