摘要
本文研究了在ｐＨ４．５的ＨＡｃ－ＮａＡｃ介质中，有非离子表面活性剂ＴｒｉｔｏｎＸ－１００存在下，痕量铁催化水中溶解氧氧化双硫腙褪色的指示反应，建立了胶束增溶催化动力学光度法测定痕量铁的新方法。方法的线性范围为０－１．５μｇ／２５ｍＬ，检出限为１．６×１０￣（－１０）ｇ／ｍＬ。用于人发中痕量铁的测定，结果满意。
In this paper, a new catalytic spectrophotometric method for the determination of trace iron has been studied based on the iron(Ⅲ) catalyze oxidation of dithizone with oxygen in the presence of Triton X-100 at pH 4. 5(HAc-NaAc) buffer. The linear range of the method is 0-1.5μg/25mL and the detection limit is 1. 6 × 10￣(-10)g/mL. The method has been used to determine iron in human hair with satisfactory results.
出处
《光谱实验室》
CAS
CSCD
1995年第2期13-16,共4页
Chinese Journal of Spectroscopy Laboratory
基金
煤炭青年科学基金
关键词
铁
催化动力学
双硫腙
人发
光度法
Iron Determination
Catalytic-Kinetic Analysis
Dithizone
Human Hair.
