硼酸对FAAS法测定硅质材料中微量铁的基体改进效应的研究  

Matrix Modification Effect of Boric Acid on Determining Trace Iron in Silicon Materials by Atomic Absorption Spectroscopy (AAS)

作　　者：孔凡茂[1] 杨秋菊[2] 

机构地区：[1]淄博市产品质量监督检验所,淄博255033 [2]淄博职业学院,淄博255000

出　　处：《现代技术陶瓷》2008年第2期32-35,共4页Advanced Ceramics

摘　　要：火焰原子吸收法(简称FAAS)测定硅质材料中的微量铁,采用硼酸为基体改进剂,消除了测定铁时大量硅的干扰,扩大了测微量铁的应用范围。方法具有准确度好、检出限低、分析速度快、操作方便等优点。加标回收率96·0%~101%,线性范围0%~10·5μg/mL,灵敏度0·19μg/mL,检出限77ng/mL,相对标准偏差小于2·2%With boric acid as matrix modifier,the determination of trace iron in silicon Materials by AAS can soundly eliminate many of the interferences of silicon on the analysis procrss. Not only the accuracy required can be achieved,but also the scope of application enlarged. The method is low in detection limit,good in accuracy,quick in analysis speed and convenient in operation.Its marked recovery rate is 96.0~101.0%, linear range 0~10.5 μg/mL,sensitivity 0.19 μg/mL,detection limit 77 ng/mL,and relative standard...

关 键 词：原子吸收法 基体改进剂 微量铁 硼酸 

分 类 号：TB302[一般工业技术—材料科学与工程]