Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method.

Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method. Research Abstract Details 

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Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method. Abstract Text:

P L Dorogi,E Neumann,

A calculational method is developed for spectrophotometric determination of stoichiometrics and individual equilibrium constants in the complexing of metal ions with metallochromic indicators. Implicit expressions are developed for the calculation of all parameters necessary to describe mixtures of 1 : 1, 1 : 2 and 2 : 1 metal-indicator complexes. The analysis of titration curves entails a series of one-variable best-fit determinations based on mass action and conservation laws; this reduction in the number of degrees of freedom in the curve-fitting procedure yields greater resolution of the complexing parameters than is allowed by conventional methods. Since a common application of metallochromic indicators is to the determination of metal-binding properties of biological molecules, accurate description of metal-indicator complexing is vital for investigation of the regulatory roles of metal ions in biological events.

Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method. Publishing Authors By Initials

PL Dorogi,E Neumann,

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Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Biophysical chemistry

VOLUME: 13

Page Numbers: 117-23

Journal Abbreviation:

ISSN: 0301-4622

DAY: 26

MONTH: Apr

YEAR: 1981

Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method. Information

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LANGUAGE: eng

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Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method. Keywords Mesh Terms:

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Grant and Affiliation Information for Spectrophotometric determination of reaction stoichiometry and equilibrium constants of metallochromic indicators I. General calculational method.

AFFILIATION: Max-Planck-Institut für Biochemie, D-8033 Martinsried/München, FRG.

Country: Netherlands

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MEDLINETA: Biophys Chem

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