Determination of the stability constant of the ternary complex formed in the copper-bipyridyl-eriochrome cyanine R system, by an isosbestic point-spectrophotometric method

Equilibrium modelling of interferences i

Equilibrium modelling of interferences in the visible spectrophotometric determination of aluminium(III): Comparison of the chromophores chrome azurol S, eriochrome cyanine R and pyrocatechol violet, and stability constants for eriochrome cyanine R-aluminium complexes

✍ David J. Hawke; H.Kipton J. Powell; Stuart L. Simpson 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 820 KB

Equilibria in the Al 3f-H+-eriochrome cyanine R (ECR) system were studied by potentiometry and spectrophotometry in 0.10 M KC1 at 25°C and p[H+] 2.5-6.5.