@article{ author = {Ahmadi Golsefidi, مازیار, Rajabzadeh, R.A, Jalilian, H.R}, title = {Using of OSC-PLS chemometry method for simultaneous determination of Gallium and Nickel in Echinacea purpurea and Humulus lupulus soil by UV-Vis Spectrophotometer}, journal = {Journal of Plant Environmental Physiology}, year = {2010}, volume = {5}, number = {17}, pages = {65-75}, doi = {} }