List of Articles خاک گیاهان دارویی سرخارگل Open Access Article Abstract Page Full-Text 1 - Using of OSC-PLS chemometry method for simultaneous determination of Gallium and Nickel in Echinacea purpurea and Humulus lupulus soil by UV-Vis Spectrophotometer مازیار Ahmadi Golsefidi R.A Rajabzadeh H.R Jalilian