水泥样品的ICP-AES法同时多组分检测研究

水泥化学分析的传统方法，实验过程冗长。本文研究了以王水+氢氟酸+高氯酸+盐酸溶样及采用水泥标准样品配制工作用标准溶液，建立了水泥样品中CaO，MgO，Fe₂O₃，Al₂O₃和TiO₂五种组分含量快速测定的等离子体发射光谱法(ICP-AES)。讨论了基体干扰、元素的光谱干扰的影响。研究了方法的检出限和精密度，方法的检出限为3.79×10-4μg·mL-1～1.07×10-2μg·mL-1，回收率为87.5%～105.6%，RSD小于1%。研究结果表明，该方法能满足快速检验的要求。

Study on the Simultaneous Determintion of Various Components in Cement Samples by Inductive Coupled Plasma-Atomic Emission Spectrometry

A simple and rapid method for determination of CaO, MgO, Fe₂O₃, Al₂O₃ and TiO₂ in cement samples by inductive coupled plasma-atomic emission spectrometry (ICP-AES) was developed. In order to carry out the analysis, the cement samples were dissolved with mixed aqua regia, hydrofluoric acid, perchloric acid, hydrochloric acid, and the standard solution was prepared by a series of standard cement samples. The matrix interference and the mutual interference of elements under test were studied by ICP-AES. The detection limits are in the range of 3.79×10-4~1.07×10-2 μg·mL-1. The recovery rates and relative standard deviations (RSD) of the method are in the range of 87.5%~105.6% and less than 1% respectively. Research results show that the method can meet the requirements of rapid chemical analysis for cement.