碱熔——电感耦合等离子体发射光谱法测定锆英石矿中各元素  

Determination of major,macro and trace elements simultaneously in zircon by sodium hydroxide fusion-inductively coupled plasma atomic emission spectrometry

作　　者：焦晨佳 Jiao Chenjia(Perkinelmer Management(Shanghai)Co.Ltd)

机构地区：[1]珀金埃尔默企业管理(上海)有限公司

出　　处：《上海计量测试》2024年第6期30-34,共5页Shanghai Measurement and Testing

摘　　要：以氢氧化钠为溶剂,经高温熔融,热水提取,盐酸酸化处理样品,电感耦合等离子体发射光谱法同时测定主含量锆和硅以及微量的镁、铝、磷、钙、钛、铬、锰、铁、锌、锶、钼、铪、铅、钇、铈、钕、钐和镱。该方法测得样品中二氧化锆和二氧化硅的含量分别为38.92%和55.20%,化学方法测得样品中二氧化锆和二氧化硅的含量分别为39.15%和55.52%,两个方法之间结果吻合。各微量元素回收率在96%~108%,各元素方法定量限(以氧化物计)在0.0002%~0.0788%,高盐基体下的校准曲线相关系数R^(2)均大于0.999。该方法克服了常规化学分析方法步骤繁琐、耗时长、工作量大的不足,提高了工作效率。In this paper,sodium hydroxide was used as fusion regaent,and the samples were fused at high temperature,leached with hot water and acidified with hydrochloric acid.The main contents of zirconium and silicon and trace amounts of magnesium,aluminum,phosphorus,calcium,titanium,chromium,manganese,iron,zinc,strontium,molybdenum,hafnium,lead,yttrium,cerium,neodymium,samarium and ytterbium were determined at the same time by using the wide linear range of inductively coupled plasma atomic emission spectroscopy.The contents of zirconia and silica in the sample were 38.92%and 55.20%respectively.The contents of silicon and zirconium were verified by classic method,the contents of silicon and zirconium were 39.15%and 55.52%respectively.The contents of the classic method were consistent with this method.The spike recoveries of each trace element were 96%~108%,the method quantitative limit of each element(calculated by oxide)was 0.0002%~0.0788%,and the R^(2) of the calibration curve under high salt matrix was more than 0.999.This method overcomes the shortcomings of cumbersome steps,long time-consuming and heavy workload of conventional chemical analysis methods,which also improves the work efficiency.

关 键 词：锆英石 碱熔 电感耦合等离子体发射光谱法 

分 类 号：O65[理学—分析化学]