ICP-AES法同时测定粘土质全组分元素的研究

STUDY ON THE SIMULTANEOUS DETERMINATION OF ALL-COMPONENTS OF CLAY MINERALS BY INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION SPECTROMTRY

采用偏硼酸锂熔样 ,电感耦合等离子体原子发射光谱 (ICP -AES)法对粘土矿物实现了一次熔样 ,全组分同时分析。对影响其光谱测量的各种因素进行了较为详细的研究 ,确定了实验的最佳测定条件。结果表明 ,方法的检出限为 0 .0 0 5 - 0 .85 7μg·mL-1,回收率为 92 .87% - 10 4 .4 6 % ,RSD小于 4 .5 0 %。该法准确、快速、简便 ,应用于粘土矿物中全组分的测定 。

It is reported this paper that the lithium metaborate fusion method decompose technique is used in the Inductively Coupled Plasma-Atomic Emission Spectromtry(ICP-AES) method determination of all-components of clay minerals.The various factors affecting spectrum intensity were examined in details.The optimum conditions for the determination is tested and discussed.The limit of the method is 0.005-0.857μg·mL -1 .The recycling rate ranks from 92.87% to 104.46%.RSD is less than 4.50%.This method is accurate,quick-acquired and convenient.It is used in the determination of all-components of clay minerals with the results is satisfactory.