Estimation of gallic acid using vanadium(V)-Eriochrome cyanine-R system and application to some herbal plants, fruit juices and wine samples

@inproceedings{Suma2014EstimationOG,
  title={Estimation of gallic acid using vanadium(V)-Eriochrome cyanine-R system and application to some herbal plants, fruit juices and wine samples},
  author={A. Suma and P. Nagaraja and N. Aradhana},
  year={2014}
}
A simple, rapid and sensitive method for the estimation of gallic acid has been developed. It is based on reduction of V(V) by gallic acid to V(IV) which forms complex with Eriochrome cyanine-R (ECR) in presence of cetyl trimethyl ammonium bromide (CTAB) resulting in a stable violet colored species. This showed maximum absorption at 580 nm. The calibration line was linear for gallic acid concentration range of 0.4-9.0 μg/mL, having limit of detection (LOD) and limit of quantification (LOQ… Expand

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