电感耦合等离子体原子发射光谱法同时测定白云石中8种主量元素  

Simultaneous determination of 8 major elements in dolomite by inductively coupled plasma atomic emission spectrometry

作　　者：游庆 金东彦 陶柳君 姚泽 彭君 孔婷 禹莲玲 YOU Qing;JIN Dongyan;TAO Liujun;YAO Ze;PENG Jun;KONG Ting;YU Lianling(Physical Science and Technology College of Yichun University,Yichun 336000,China;Geological Experiment and Testing Center of Hunan Province,Changsha 410007,China;Forestry College of Central South University of Forestry&Technology,Changsha 410004,China)

机构地区：[1]宜春学院物理科学与技术工程学院,江西宜春336000 [2]湖南省地质实验测试中心,长沙410007 [3]中南林业科技大学林学院,长沙410004

出　　处：《化学分析计量》2025年第2期47-53,共7页Chemical Analysis And Meterage

基　　金：湖南省地质院科研项目(HNGSTP202214);湖南省自然资源科技计划项目(20230146ST)。

摘　　要：建立电感耦合等离子体原子发射光谱(ICP-AES)法同时测定白云石中8种主量元素含量。选取3种白云石国家一级标准物质(GBW07216a、GBW07217a、YSBC35733),在加热的条件下用酸将它们溶解,用ICP-AES法测定其中Al_(2)O_(3)、Fe_(2)O_(3)、K_(2)O、CaO、MgO、MnO、Na_(2)O、P。通过优化加热时间、提取酸类型以及浓度,确定了溶样时间为1.5 h,提取酸为50%(体积比)王水,其测定结果均在标准值范围内,方法检出限为0.00002%~0.0015%。该方法具有经济环保、操作简便、检出限低、检出速度快、准确度好、精密度高、分析方法易建立等诸多优点,适用于白云石中主量元素的快速测定。该方法可为白云岩的地质研究、矿产资源勘查和材料科学应用提供重要的分析数据和科学依据。A method for simultaneous determination of 8 major elements in dolomite by inductively coupled plasma atomic emission spectrometry was established.Three national standard reference materials of dolomite(GBW 07216a,GBW 07217a,YSBC35733)were selected,and dissolved with acid under heating conditions,then Al_(2)O_(3),Fe_(2)O_(3),K_(2)O,CaO,MgO,MnO,Na_(2) and P were determined by ICP-AES.By optimizing the heating time,extraction acid type and concentration,the dissolution time of this method was determined to be 1.5 h,and the extracting acid was 50%(volume ratio)of aqua regia,the determination results were within the range of standard values,and the detection limit of the method were in the range of 0.00002%-0.0015%.The method has many advantages,such as economic and environmental protection,easy operation,low detection limit,fast detection speed,good accuracy,high precision,easy to establish analytical method,etc.It is suitable for the rapid determination of major elements in dolomite.This method can provide important analytical data and scientific basis for the geological research,mineral resources exploration and material science application of dolomite.

关 键 词：白云石 电感耦合等离子体原子发射光谱法 主量元素 样品处理优化 

分 类 号：O657.31[理学—分析化学]