铁叶绿酸钠中全铁含量测定  

Determination of Total Iron of Sodium Ferrous Chlorophyll

作　　者：王丽芸[1] 刘淑萍[1] 

机构地区：[1]河北理工大学化工与生物技术学院,河北唐山063009

出　　处：《河北理工学院学报》2007年第1期114-115,136,共3页Journal of Hebei Institute of Technology

基　　金：唐山市重点实验室项目

摘　　要：建立了一种叶绿素铁衍生物中铁离子含量的测定方法。是把样品置于瓷坩埚中加热600℃灰化处理，将叶绿素有机体烧尽，铁离子以氧化铁状态存在。向埚中滴加浓盐酸溶解红渣，Fe^3＋游离出来。用邻菲罗啉与Fe^2＋形成酒红色络合物，510nm波长处光度测定，铁离子含量在0．4—2．8mg／L范围内符合Beer定律。To establish a determination of total iron of Sodium Ferrous Chlorophyll in a porcelain crucible,the sampie was heated to 600℃, the organic part of chlorophyll was burned to ashes and ferrous was left in Fe2O3. Then dissolved to clear solution with hydrochloric acid. Iron - ion was determined by spectrophotometry at wavelengths of 510nm. The result showed a good linear relationship in concentration range of 0. 4 - 2. 8mg/L. The method is simple, nontoxic and environmental protection,the result is accurate. It is suitable for analysis of iron - ion of organic preparation and iron chlorophyll derivatives.

关 键 词：铁叶绿酸钠 铁 含量测定 

分 类 号：Q-311[生物学]