摘要
依据诱导反应原理,提出了同时测定多组份的动力学方法,并以停流流动注射分析研究了Fe(Ⅱ)、Ti(Ⅲ)及V(Ⅳ)诱导的Cr(Ⅵ)-I^-反应体系,建立了铁、钛和钒同时测定的条件。对铁、钛和钒测定的线性范围分别为0～2.2μg/ml,0～3.1μg/ml及0～1.8μg/ml,检测限分别为0.012,0.020和0.018μg/ml。
A stopped-flow kinetic spectrophotometric method for the simultaneous determination of multi-components is proposed based on the principle of inductive reactions. The kinetics of Fe(Ⅱ),Ti(Ⅲ)and V ( Ⅳ) induced chromium( Ⅵ)-iodide reaction has been studied and a procedure for the simultaneous determination of iron, titanium and vanadium is proposed. The calibration graphs were linear for 0-2. 2, 0-3. 1 and 0 -1. 8μg/ml for Fe(Ⅱ),Ti(Ⅲ)and V(Ⅳ) .respectively. The detection limits were 0. 012μg/ml for Fe( Ⅱ), 0. 020μg/mJ for Ti(Ⅱ)and 0. 08μg/ml for V(Ⅳ).
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1993年第11期1289-1292,共4页
Chinese Journal of Analytical Chemistry
关键词
停流
铁
钛
钒
流动注射
Stopped-flow
Simultaneous determination
Iron
Titanium
Vanadium.
