List of Articles Eriochrome Black T Open Access Article Abstract Page Full-Text 1 - Determination of Sitagliptin Phosphate in Bulk Drugs by Extractive Spectrophotometric Method C. Bala Sekaran D. Ravisankar Open Access Article Abstract Page Full-Text 2 - Synthesis of Fe3O4/Eggshell and egg membrane Nanocomposite and Application for Adsorption of Cationic and Anionic Dyes Naereh Besharati nina alizadeh 10.22034/jna.2019.568998.1093 Open Access Article Abstract Page Full-Text 3 - Synthesis of Fe3O4/Eggshell and egg membrane Nanocomposite and Application for Adsorption of Cationic and Anionic Dyes Naereh Besharati Nina Alizadeh 10.22034/jna.2019.669599 Open Access Article Abstract Page Full-Text 4 - A comparison between the heterogeneous photodecolorization of an azo dye using Ni/P zeolite and NiS/P zeolite catalysts Alireza Nezamzadeh-Ejhieh Mahshid Khorsandi