微波消解-浓度直读法快速间接测定贼小豆中的微量铝  

Rapid Indirect Determination of Aluminum in Vigna minima by Microwave Digestion-Direct Reading Concentration Method

作　　者：宋晓寒[1,2] 韩帅[1] 高向阳[1] 李超然[1] 

机构地区：[1]河南农业大学食品科学技术学院,郑州450002 [2]河南化工职业学院,郑州450042

出　　处：《河南科学》2011年第7期795-798,共4页Henan Science

基　　金：河南省重点学科建设基金资助(10466-X-082301)

摘　　要：为了研究贼小豆中铝含量,用微波压力快速消解样品,用氟离子选择性电极浓度直读法测定样品液中的剩余氟离子,间接确定铝离子含量.结果测得样品中铝含量为5.394 4μg/g,加标回收率为101.81%,RSD为2.8%（n=5）,线性范围为3.75~62.5μg/g,相关系数为0.997 3.In order to study the content of micro-aluminum in grain,vigna minima was selected as the experimental material and fluorine selective electrode-direct reading method was adopted.The results indicated that the content of aluminum in vigna minima was 5.394 4 μg /g,the recovery was 101.81 %,the relative standard deviations（RSD） was 2.8 %（n=5）,the linear range was 3.75~62.5 μg /g with the correlation coefficient 0.997 3 with satisfactory analytical results.

关 键 词：微波消解 浓度直读法 氟离子选择性电极 贼小豆 微量铝 

分 类 号：O657.15[理学—分析化学]