摘要
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、锰的添加回收试验，回收率分别为９７．０５％、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。
A previous disposal method for the digestion of samples by using PTFE closed-vessel microwave oven was studied. Some factors affecting digestion effect are selected by orthogonal experiments to get a optimum digestion condition. Under this condition, the Zn、Fe、Mn elements are put to the addition and recoveries test. The method respectively gives recoveries of 97.0%, 94.3%, 90.6%, variation coefficient of 1.2%,4.1%, 3.4%. In addition, expansion test is made and compared with the inter national standards. The testing and comparison results show that this method is safe,quick and convenient.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
1998年第2期42-47,共6页
Journal of Harbin University of Commerce：Natural Sciences Edition
