CAJ | 학술논문

电感耦合等离子体发射光谱法（ICP-OES）具有分析速度快、准确度高及多元素同时测定的特性，近年来被广泛应用于地质实验室各类样品的分析。本次工作采用硝酸―氢氟酸―高氯酸消解样品，在5%（体积分数）的王水介质中，用电感耦合等离子体发射光谱法测定土壤、水系沉积物样品中主量、次量和微量元素。通过改进溶样方法、筛选分析谱线、设置背景扣除位置及优化仪器工作参数等，提高了分析准确度和精密度。经国家一级标准物质分析验证，测定值与标准值吻合，结果准确可靠，精密度（RSD，n=11）＜5%。该方法样品处理程序简单快速，试剂用量少，线性范围宽，分析重现性好，能够满足基体组成复杂的区域地球化学调查样品分析的要求，将该方法应用于青海省矿产资源调查评价项目土壤及水系沉积物样品的分析取得了良好的效果。
전감우합등리자체발사광보법（ICP-OES）구유분석속도쾌、준학도고급다원소동시측정적특성，근년래피엄범응용우지질실험실각류양품적분석。본차공작채용초산―경불산―고록산소해양품，재5%（체적분수）적왕수개질중，용전감우합등리자체발사광보법측정토양、수계침적물양품중주량、차량화미량원소。통과개진용양방법、사선분석보선、설치배경구제위치급우화의기공작삼수등，제고료분석준학도화정밀도。경국가일급표준물질분석험증，측정치여표준치문합，결과준학가고，정밀도（RSD，n=11）＜5%。해방법양품처리정서간단쾌속，시제용량소，선성범위관，분석중현성호，능구만족기체조성복잡적구역지구화학조사양품분석적요구，장해방법응용우청해성광산자원조사평개항목토양급수계침적물양품적분석취득료량호적효과。
ICP-OES has been widely used in all kinds of sample analysis in geological laboratory,because the method has the characteristics of rapid determination,high accuracy and multi-element simultaneous determination.This work uses HNO3-HF-HClO4 digestion sample to determine the major,minor and trace elements of soil samples and stream sediment samples by ICP-OES in 5% regia solution.The accuracy and precision are improved by improving dissolving method,selecting analysis spectral line,setting background deduction locationand optimizing instrument operating parameters.Through analysis and verification of national standard substance,the measured values are consistent with the standard and the precision is less than 5%.The method is simple and rapid processing,having the advantages of less reagent consumption,wide linear range,good analysis reproducible and meet analysis requirements of regional geochemical survey samples of complex matrix composition.The method was applied to the analysis of soil and stream sediment samples of Qinghai Province and achieved remarkable results.