电感耦合等离子体发射光谱法测定石灰石中的游离氧化钙

Determination of Free Calcium Oxide in Limestone by Inductively Coupled Plasma-Optical Emission Spectrometry

中文关键词:  电感耦合等离子体发射光谱法  石灰石  游离氧化钙  蔗糖

英文关键词:Inductively coupled plasma-atomic emission spectrometry  Limestone  Free calcium oxide  Sucrose

中文摘要:

      利用石灰石中游离氧化钙可与蔗糖结合生成溶解度较大的蔗糖钙,而石灰石中的碳酸钙及其它钙盐不与蔗糖起作用的原理,将其进行分离。再通过对仪器分析条件的研究,建立了电感耦合等离子体发射光谱法测定石灰石中游离氧化钙的方法。方法的检出限为1.21 μg/mL,方法的加标回收率在97.6%~100.3%之间,相对标准偏差(n=11)小于1.34%。方法快速简捷,准确度高。

英文摘要:

      Using limestone in the free calcium oxide can be generated with greater solubility of sucrose sugar with calcium,and calcium carbonate in limestone and other calcium does not work with the principle of sucrose,we separated free Calcium oxide based on this princtple.A method for determination of free calcium oxida in Limestone by inductively coupled plasma-optical emission spectrometry was established with analysising condition of instruments. The detection limit for the method was 1.21 μg/mL.Tests for recovery were made by standard addition method,giving values of recovery in the range of 97.6%~100.3% with RSD′S(n=11) less than 1.34%.The method is quick and accurate.