二氧化硅中铜含量测定方法的比较  

Comparision of measurement methods for copper content in silica

作　　者：宋波[1] 张艳红 

机构地区：[1]中海油天津化工研究设计院,天津300131 [2]天津渤海东方红化工有限公司

出　　处：《无机盐工业》2010年第2期58-59,62,共3页Inorganic Chemicals Industry

摘　　要：介绍了几种实验室可选择的二氧化硅中铜含量的测定方法并对这些方法进行比较。通过实验证明:二氧化硅中铜的3种测定方法得到的结果都在允差范围内,说明测定铜的效果都很好,其中火焰原子吸收法得到越来越多的应用,具有操作步骤简便、准确度高、适用性强、本身选择性好、干扰相对小、测定铜相当稳定等特点,特别适合测定二氧化硅中的铜;缺点是配套仪器较昂贵,有的实验室不具备。通过对几种二氧化硅中铜含量的测定方法的比较,以期为研究者提供参考。Several optional laboratory determination methods for copper content in silica were described and compared. It was proved by experiments that, the determination effects of three kinds of copper determination methods for silica were all good because of their results all within the allowable tolerance. Among them, flame atomic absorption spectrometry （FAAS） is increasingly being applied, due to its simple operation, high accuracy, strong applicability, good self selectivity, relatively small interfere, and fairly satability for copper determination. Thus it is particularly suitable for determining the copper in silica. However,its disadvantage is some laboratories do not have the expensive instrument. It is expected to provide reference for researchers through the comparison among the several methods.

关 键 词：二氧化硅 铜 火焰原子吸收法 

分 类 号：TQ127.2[化学工程—无机化工]