激光显微光谱分析近似定量测定铌钽铁矿中铌、钽、铁、锰

Determination of Niobium,Tantalum,Iron,and Manganese in Niobite-tantalite by Laser Micro Spectrochemical Analysis

一、概念随着激光显微光谱分析的广泛应用,国内外许多人致力于分析方法的研究,已报道的有相对比值法,显线法、校正系数法,内标法等。几年来我们主要应用相对比值法分析了上千个岩矿样品,结合实践也对上述几种分析方法作了比较。

A method for determination of Nb,Ta,Fe and Mn in niobite-tantalite by Laser micro spectrochemical analysis has been recommended.It was based on applying variable internal standard method,and using powder mineral of known composition as reference standard.The suitable operating conditions has been selected.The determination range for Nb_(2)O_(5) and Ta_(2)O_(5) were 20-60%,for FeO and MnO were 4-16%.The relative standard deviation were not more than+20%.