@article{nagaraja_shrestha_shivakumar_al-tayar_gowda_2011,  title={Spectrophotometric determination of catecholamine using vanadium and eriochrome cyanine r},  volume={34},  ISSN={0100-4042},  url={https://doi.org/10.1590/S0100-40422011000300002},  DOI={10.1590/S0100-40422011000300002},  number={3},  journal={Química Nova},  publisher={Sociedade Brasileira de Química},  author={Nagaraja, Padmarajaiah and Shrestha, Ashwinee Kumar and Shivakumar, Anantharaman and Al-Tayar, Naef Ghallab Saeed and Gowda, Avinask K.},  year={2011},  pages={373–376} }