一般分析金属及合金都是把要分析的东西削下来一部份,用酸溶解,再在所得的溶液中检出所含的金属。当然,经过切削取样,金属就改变了它的外貌,甚至使它失去使用价值,所以需要一种不损坏样品表面的分析方法。不久以前,点滴分析的创始者H.A.塔那那也夫发明了无切削点滴分析,解决了这一问题。无切削分析的原理是把适当的溶剂(一般都是酸)两三滴,滴到样品表面上,使之溶解,然后取所得溶液进行点滴分析。所以无切削点滴分析实 General analysis of metals and alloys are to be part of the analysis of things cut off, dissolved with acid, and then detected in the resulting solution contained in the metal. Of course, after cutting the sample, the metal changed its appearance and even lost its usefulness, so an analytical method that does not damage the surface of the sample is needed. Not long ago, drip analysis founder H.A. Thanenafu invented the no cutting analysis, to solve this problem. The principle of non-cutting analysis is to apply two or three drops of the appropriate solvent (usually acid) to the surface of the sample to dissolve it, and then take the resulting solution for drop analysis. Therefore, no cutting bit by bit analysis