1,10-Phenanthroline Modulated Redox Potentials Explored for Benign Iron Speciation Analysis
نویسندگان
چکیده
منابع مشابه
1,10-Phenanthroline Modulated Redox Potentials Explored for Benign Iron Speciation Analysis
The objective of this study is to develop a simple, environmentally benign alternate analytical method for simultaneous estimation of iron oxidation states. This proposed method of iron speciation is based on 1,10-phenanthroline (phen) modified redox potential of transition metal ions. In a pre-step excess cerium(IV) oxidizes iron(II) in sample to iron(III). Initial back titration of un-reacted...
متن کاملAstatine standard redox potentials and speciation in acidic medium.
A combined experimental and theoretical approach is used to define astatine (At) speciation in acidic aqueous solution and to answer the two main questions raised from literature data: does At(0) exist in aqueous solution and what is the chemical form of At(+III), if it exists. The experimental approach considers that a given species is characterized by its distribution coefficient (D) experime...
متن کاملSolution Redox Couples for Electrochemical Energy Storage I. Iron (lll)-Iron (11) Complexes with O-Phenanthroline and Related Ligands
Iron ( I I I ) I r o n (II) complexes wi th o -phenan th ro l ine and re la ted l igands have been examined by e lec t rochemical techniques in aqueous H2SO4 media wi th respect to the i r su i tab i l i ty as redox couples for e lec t rochemical energy storage. The i ron (II) complexes undergo a r ap id 1 e lec t ron oxida t ion at g raphi te and p la t inum electrodes to yie ld i ron (III) co...
متن کاملDetermination of Iron and Its Redox Speciation in Seawater Using Catalytic Cathodic Stripping Voltammetry
Existing electrochemical methods for the determination of iron require long deposition times to determine low iron levels. Here a new method, based on catalytic cathodic stripping voltammetry, is described to determine subnanomolar levels of iron in seawater. The new method has a better baseline and is generally simplified, leading to a lower reagent blank and minimized sample handling compared...
متن کاملReduction potentials of heterometallic manganese-oxido cubane complexes modulated by redox-inactive metals.
Understanding the effect of redox-inactive metals on the properties of biological and heterogeneous water oxidation catalysts is important both fundamentally and for improvement of future catalyst designs. In this work, heterometallic manganese-oxido cubane clusters [MMn3O4] (M = Sr(2+), Zn(2+), Sc(3+), Y(3+)) structurally relevant to the oxygen-evolving complex (OEC) of photosystem II were pre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Croatica Chemica Acta
سال: 2013
ISSN: 0011-1643,1334-417X
DOI: 10.5562/cca2167