邻菲绕啉在火焰原子吸收光谱法中的应用  

Application of o phenanthroline hydrate in flame atomic absorption spectrometry

作　　者：陈学泽[1] 陈一鸣[1] 

机构地区：[1]中南林学院基础课部

出　　处：《化学试剂》1997年第4期220-222,共3页Chemical Reagents

摘　　要：从７种对金属元素有较大增感效应的有机化合物中，选出邻菲绕啉作增感剂。当试液的ｐＨ值在１～１．５之间时，邻菲绕啉的浓度为０．２％时适合测定钾、钠、钙、镁、铜、锰、铁和锌等８种元素。树木叶片的分析表明，５次测定的相对误差在０．００３４～０．０５３之间，标准添加回收率在９９％～１０６％之间，所有元素的ｔ值均小于ｔ（０．９５，５）＝２．７８。因此，实验有较高的准确度和精密度。From 7 organic compounds that have greater enhancing coefficients with metallic elements, o phenanthroline hydrate has been selected.Illustrated by analysis of tree leaves,in a solution of pH from 1 to 1 5,0 2% o phenanthroline hydrate can be used to determine 8 metallic elements:K Na Ca Cu Mg Mn Fe and Zn.The relative deviations of 5 determinations are from 0 0034 to 0 053 The recovery by standard addition is from 99% to 106%,the t values for 8 metallic elements are all less than t (0 95,5)=2 78 The method has better accuracy and precision.

关 键 词：邻菲绕啉 火焰 原子吸收光谱法 元素 增感剂 

分 类 号：O657.310.3[理学—分析化学]