Selecting an Acid Mixture for Microwave Digestion of Diverse Steel Samples in Inductively Coupled Plasma Atomic Emission Spectrometric Analysis of Boron, Aluminum, Silicon, Phosphorous, and Alloyed Elements

This paper describes an improved microwave digestion procedure for steel samples of various kinds intended inductively coupled plasma atomic emission spectrometry, including low alloy steel, stainless alloyed tool and high-speed steel. Their resulting solutions were used the simultaneous quantification elements together with several light boron, aluminum, silicon, phosphorous. Conventional methods, using materials such as hydrochloric nitric acids aqua regia, sulfuric phosphoric a fuming treatment, showed poor ability to decompose certain steels completely or be simultaneously quantified some elements. By contrast, acid mixture acid, hydrofluoric distilled water 2:1:1:1:5 volume ratio fully decomposed samples. For suggested is applicable quantify phosphorous, titanium, vanadium, manganese, cobalt, copper, molybdenum, tungsten.