摘要
建立了过氧化氢试剂中痕量阴离子的离子色谱分析方法 ,样品中的过氧化氢基体用铂丝在小烧杯中加热分解 ,处理后的样品溶液注入离子色谱系统进行分析测定。常见阴离子的检出限为 1× 10 -9。Cl-和SO2 -4的标准加入回收率分别为 10 9 7%和 10 2 %。
A method of determination for trace anion impurities in concentrated hydrogen peroxide has been developed.The decomposition of hydrogen peroxide was completed by Pt-catalyst in a small beaker.The sample treated was injected into an ion chromatographic system and analyzed.The detection limit was in 1×10^(-9) level for Cl^-,H_2PO^-_4,NO^-_3 and SO^(2-)_4.The recovery of standard addition for Cl^- and SO^(2-)_4 was 109.7% and 102%.Respectively this method could be applied to determine trace anion in commercial hydrogen peroxide with satisfactory results.
出处
《化学试剂》
CAS
CSCD
北大核心
2004年第5期287-288,296,共3页
Chemical Reagents
