Determination of Main Elements in Chromium and Nickel Alloy by Internal Standard Normalization Method

A combination of inductively coupled plasma emission spectrometry (ICP-AES) normalization method was adopted to determine the main elements in chromium and nickel alloy. The optimum measuring conditions of the instrument were determined by experiments.Results showed that the recovery rate of chromium and nickel were between 99.3%~101.0%, and the RSD < 0.45%, which presents high accuracy and precision of determination. The method would meet the requirements of product analysis.