@article{tarighat_afkhami_2012,  title={Simultaneous spectrophotometric determination of Cu(II), Co(II) and Ni(II) using ratio spectra-continuous wavelet transformation in some food and environmental samples},  volume={23},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532012000700016},  DOI={10.1590/S0103-50532012000700016},  number={7},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Tarighat, Maryam Abbasi and Afkhami, Abbas},  year={2012},  month={Jul},  pages={1312–1319} }