微波消解-ICP-AES法测定全瓷义齿用氧化锆瓷块中Y_2O_3含量  

Determination of Yttrium (Ⅲ) Oxide in All Ceramic Zirconia Tiles by Microwave Digestion ICP-AES

作　　者：王利霞 黄永富 林红赛 岳卫华 WANG Li-xia;HUANG Yong-fu;LINHong-sai;YUEWei-hua(Beijing Institute of Medical Device Testing,Beijing 101111)

机构地区：[1]北京市医疗器械检验所,北京101111

出　　处：《中国医疗器械信息》2018年第13期13-15,共3页China Medical Device Information

摘　　要：目的:利用电感耦合等离子体原子发射光谱法(ICP-AES)测定全瓷义齿用氧化锆瓷块中Y_2O_3含量。方法:采用微波消解的方法对样品进行溶解,并通过谱库干扰元素查找,选择共存元素间没有干扰的光谱线371.0nm作为Y分析线。同时通过基体匹配和酸度匹配,采用外标法进行定量分析,并进行了回收率实验和精密度实验。结果:Y_2O_3含量在2.54%~8.89%(Y含量2.0%~7.0%)范围内线性良好(r=0.99998),检出限为0.0030%,平均加样回收率为100.9%,相对标准偏差RSD为2.3%(n=9)。结论:该方法简便、快速、准确,可用于全瓷义齿用氧化锆瓷块中Y_2O_3含量测定。Objective： The ICP-AES method was used to analyze Yttrium（Ⅲ） oxide in all ceramic zirconia tiles. Methods： Microwave digestion technology is used to digest all ceramic zirconia tiles. The spectral line without interference among elements at 371.0 nm was selected as the analytical 1 ines for yttrium. Quantitative tests were carried out by external standard method with matrix and acidity matching, and recovery and precision tests were also studied. Results： The linear range of yttrium（Ⅲ） oxide was 2.54%-8.89%（The content of yttrium was 2.0%-7.0%）（r=0.99998）. The limit of detection of yttrium（Ⅲ） oxide was 0.0030% and the average recovery ratio was 100.9% with a RSD of 2.3%（n=9）. Conclusion： The method is simple, rapid and accurate for yttrium（Ⅲ） oxide determination in all ceramic zirconia tiles.

关 键 词：微波消解 ICP-AES法 氧化锆 Y2O3 

分 类 号：R318[医药卫生—生物医学工程]