ICP-AES法测定进口氧化铝中杂质元素含量  

ICP-AES DETERMINATION OF IMPURITIES IN IMPORTED ALUMINIUM OXIDE

作　　者：胥成民[1] 陈宗宏[1] 

机构地区：[1]上海出入境检验检疫局,上海200135

出　　处：《理化检验（化学分册）》2006年第1期46-47,共2页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：氧化铝样0．2000g在微波助溶下溶于4mL磷酸，定容于100mL，校准用标准溶液中准确加磷酸匹配。用ICP—AES法测定氧化铝中杂质钠、钛、铁、硅、钙、钒、锌，回收率在98．6%～105．0%间。方法满足进口氧化铝的检验要求，7项元素分析结果的RSD（n=11）均小于1.5%。0. 2 g of aluminium oxide was microwave-assistedly dissolved with 4 mL phosphoric acid then made up its volume to 100 mL. Phosphoric acid was precisely added in the standards for calibration. Impurities Na, Ti, Fe, Si, Ca, V and Zn in alumunium oxide were determined using inductively coupled plasma atomic emission spectrometry. Recoveries were in range of 98. 6%- 105. 0%. The proposed method met the requirements of the inspection of imported aluminium oxide giving RSD＇s （n=11） less than 1.5%.

关 键 词：ICP—AES 微波消解 氧化铝 

分 类 号：O657.31[理学—分析化学]