List of Articles Spectrophotometric Open Access Article Abstract Page Full-Text 1 - Kinetic Spectrophotometric Method for Determination of S032- Using Methylen blue A. Mohammad Dehqan M. Reza Shishehbore N. Nasirizadeh Open Access Article Abstract Page Full-Text 2 - Kinetic spectrophotometric determination of trace amounts of nitrite ion using potassium bromate-murexide mixture in acidic media M.S Tehrani A. Parchehbaf Open Access Article Abstract Page Full-Text 3 - Equilibrium Constants of the Complexation of Molybdate Ion with para-Sulfonatocalix [4] arene in aqueous media S. Z. Hashemizade Ali Farajtabar