Chipless Method of Analysis

a method of chemical analysis for metals and alloys that permits their composition to be determined without destroying the integrity of a specimen. It was developed by the Soviet chemist N. A. Tananaev in 1942. The method involves the analysis of solutions obtained by depositing a drop of a reagent on the surface of a specimen. For a qualitative determination the methods of drop analysis are employed. Colorimetry methods are used for a quantitative determination. (The test solution is compared with a similar solution from a reference specimen.)