石墨炉原子吸收光谱法测定2,3,4,4'-四羟基二苯甲酮中痕量铁

林产化学与工业 ›› 2008, Vol. 28 ›› Issue (04): 112-114.

石墨炉原子吸收光谱法测定2,3,4,4'-四羟基二苯甲酮中痕量铁

王维如¹, 黄嘉玲^1,2, 王建升¹, 金霞¹, 陈文文^1,2

1. 南京龙源天然多酚合成厂, 江苏南京, 210032;2. 中国林业科学研究院林产化学工业研究所, 国家林业局林产化学工程重点开放性实验室, 江苏南京, 210042

收稿日期:2008-03-27 修回日期:1900-01-01 出版日期:2008-08-30 发布日期:2008-08-30

Determination of Trace Iron in 2,3,4,4′-Tetrahydroxybenzophenone by Graphite Furnace Atomic Absorption Spectrometry

WANG Wei-ru¹, HUANG Jia-ling^1,2, WANG Jian-sheng¹, JING Xia¹, CHEN Wen-wen^1,2

1. Nanjing Longyuan Natural Polyphenol Synthesis Factory, Nanjing 210032, China;2. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China

Received:2008-03-27 Revised:1900-01-01 Online:2008-08-30 Published:2008-08-30

摘要/Abstract

摘要： 建立了用石墨炉原子吸收光谱法测定2,3,4,4′-四羟基二苯甲酮中痕量铁的方法,用Zeeman/200型原子吸收分光光度计,在干燥温度120℃、灰化温度700℃、原子化温度2400℃、空心阴极灯电流mA时,测定其铁的含量.铁质量浓度在2.5～10.0μg/L范围内与吸光度呈良好的线性关系,重复性(RSD)为1.99%,测定方法的回收率为94.2%,本方法精密度好,重现性好,可满足2,3,4,4′-四羟基二苯甲酮中痕量铁的原子吸收测定要求.

关键词: 原子吸收光谱法, 石墨炉, 4'-四羟基二苯甲酮, 痕量铁

Abstract: A determination method of trace iron in 2,3,4,4'-tetrahydroxybenzophenone by graphite furnace atomic absorption spectrometry is established. The optimum condition of graphite temperature and electric current of hollow cathode lamp were investigated. Determination conditions were: drying temperature 120℃, ashing temperature 700℃, atomization temperature 2400℃,electric current of hollow cathode lamp 3mA. There was a good linearity in range of 2.5-10.0μg/L. Relative standard deviation(RSD) was 1.99%, and recovery rate was 94.2%. This method was accurate and reproducible, and suitable for determination of trace iron in 2,3,4,4'-tetrahydroxybenzophenone.

Key words: atomic absorption spectrometry, graphite furnace, 4'-tetrahydroxybenzophenone, trace iron

中图分类号:

TQ049
D433

王维如;黄嘉玲;王建升;金霞;陈文文;. 石墨炉原子吸收光谱法测定2,3,4,4'-四羟基二苯甲酮中痕量铁[J]. 林产化学与工业, 2008, 28(04): 112-114.

WANG Wei-ru;HUANG Jia-ling;WANG Jian-sheng;JING Xia;CHEN Wen-wen;. Determination of Trace Iron in 2,3,4,4′-Tetrahydroxybenzophenone by Graphite Furnace Atomic Absorption Spectrometry[J]. , 2008, 28(04): 112-114.