| Removal of Pb (II), Cd (II) and Co (II) from aqueous solution using Garcinia mangostana L. fruit shell R Zein, R Suhaili, F Earnestly, E Munaf Journal of hazardous materials 181 (1-3), 52-56, 2010 | 176 | 2010 |
| The use of rice husk for removal of toxic metals from waste water E Munaf, R Zein Environmental technology 18 (3), 359-362, 1997 | 157 | 1997 |
| Terminalia catappa shell as low-cost biosorbent for the removal of methylene blue from aqueous solutions L Hevira, JO Ighalo, H Aziz, R Zein Journal of industrial and engineering chemistry 97, 188-199, 2021 | 140 | 2021 |
| Biosorption of indigo carmine from aqueous solution by Terminalia catappa shell L Hevira, JO Ighalo, R Zein Journal of Environmental Chemical Engineering 8 (5), 104290, 2020 | 108 | 2020 |
| The use of rice husk for removal of phenol from waste water as studied using 4-aminoantipyrine spectrophotometric method E Munaf, R Zein, R Kurniadi, I Kurniadi Environmental Technology 18 (3), 355-358, 1997 | 73 | 1997 |
| Electrochemical determination of chromium (VI) in river water with gold nanoparticles-graphene nanocomposites modified electrodes TK Sari, F Takahashi, J Jin, R Zein, E Munaf Analytical Sciences 34 (2), 155-160, 2018 | 54 | 2018 |
| The use of Terminalia catappa L. fruit shell as biosorbent for the removal of Pb (II), Cd (II) and Cu (II) ion in liquid waste L Hevira, E Munaf, R Zein Journal of Chemical and Pharmaceutical Research 7 (10), 79-89, 2015 | 41 | 2015 |
| Modification of rice husk silica with bovine serum albumin (BSA) for improvement in adsorption of metanil yellow dye R Zein, ZB Tomi, S Fauzia, Z Zilfa Journal of the Iranian Chemical Society 17, 2599-2612, 2020 | 38 | 2020 |
| Sugar palm Arenga pinnata Merr (Magnoliophyta) fruit shell as biomaterial to remove Cr(III), Cr(VI), Cd(II) and Zn(II) from aqueous solution R Zein, DA Hidayat, M Elfia, N Nazarudin, E Munaf Journal of Water Supply: Research and Technology—AQUA 63 (7), 553-559, 2014 | 34 | 2014 |
| Adsorption and reaction kinetics of tatrazine by using Annona muricata L seeds. S Fauzia, F Furqani, R Zein, E Munaf Journal of Chemical and Pharmaceutical Research 7 (1), 573-582, 2015 | 32 | 2015 |
| Enhancing sorption capacity of methylene blue dye using solid waste of lemongrass biosorbent by modification method R Zein, JS Purnomo, P Ramadhani, MF Alif, CN Putri Arabian Journal of Chemistry 16 (2), 104480, 2023 | 29 | 2023 |
| Bioremoval of methyl orange dye using durian fruit (Durio zibethinus) Murr seeds as biosorbent Z Chaidir, R Zein, DT Sagita, E Munaf Journal of Chemical and Pharmaceutical Research 7 (1), 589-599, 2015 | 24 | 2015 |
| Isotherm and kinetic modeling of Pb(II) and Cu(II) uptake by Annona muricata L. seeds. MI Kurniawan, Z Abdullah, A Rahmadani, R Zein, E Munaf | 24 | 2014 |
| Indrawati and E. Munaf R Zein, R Suhaili, F Earnestly J. Hazard. Mater 181 (3), 52-56, 2010 | 24 | 2010 |
| Study of equilibrium, kinetic and thermodynamic for removal of Pb (II) in aqueous solution using Sago bark (Metroxylon sago) S Fauzia, H Aziz, D Dahlan, R Zein AIP Conference Proceedings 2023 (1), 2018 | 23 | 2018 |
| Shrimp shell (Metapenaeus monoceros) waste as a low-cost adsorbent for metanil yellow dye removal in aqueous solution P Ramadhani, Z Chaidir, Z Zilfa, ZB Tomi, D Rahmiarti, R Zein Desalination and Water Treatment 197, 413-423, 2020 | 22 | 2020 |
| Lemongrass (Cymbopogon nardus) leaves biowaste as an effective and low-cost adsorbent for methylene blue dyes removal: isotherms, kinetics, and … R Zein, JS Purnomo, P Ramadhani, MF Alif, S Safni Separation Science and Technology 57 (15), 2341-2357, 2022 | 21 | 2022 |
| The fast and of low-cost-adsorbent to the removal of cationic and anionic dye using chicken eggshell with its membrane L Hevira, A Rahmi, R Zein, Z Zilfa, R Rahmayeni Mediterranean Journal of Chemistry 10 (3), 294-301, 2020 | 21 | 2020 |
| Adsorptive cathodic stripping voltammetric method with alizarin for the simultaneous determination of cadmium, and zinc in water samples H Pardi, H Suyani, R Zein Oriental Journal of Chemistry 32 (6), 3071, 2016 | 21 | 2016 |
| Anodic stripping voltammetry for the determination of trace cr (vi) with graphite/styrene-acrylonitrile copolymer composite electrodes TK Sari, J Jin, R Zein, E Munaf Analytical Sciences 33 (7), 801-806, 2017 | 20 | 2017 |
