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Mohammad, H.H. and Zain, S.M. and Khan, R.A. and Khalid, K. (2014) Establishment of physicochemical measurements of water polluting substances via flow perturbation gas chromatography. Sains Malaysiana, 43 (12). pp. 1915-1925. ISSN 0126-6039,
Chowdhury, Z.Z. and Khalid, K. and Ahmad, A.A. and Khan, R.A. and Zain, Sharifuddin Md (2012) Application of response surface methodology (Rsm) for optimizing production condition for removalof Pb (Ii) and Cu (Ii) onto kenaf fiber based activated carbon. Research Journal of Applied Sciences, Engineering and Technology, 4 (5). pp. 458-465. ISSN 20407459,
Chowdhury, Z.Z. and Khalid, K. and Rafique, R.F. and Khan, R.A. and Zain, Sharifuddin Md (2012) Batch and fixed bed adsorption studies of lead (II) cations from aqueous solutions onto granular activated carbon derived from mangostana garcinia shell. BioResources, 7 (3). pp. 2895-2915. ISSN 19302126,
Khalid, K. and Zain, Sharifuddin Md and Khan, R.A. (2012) Determination Of diffusion coefficients and activation energy of selected organic liquids using reversed-flow gas chromatographic technique. Sains Malaysiana, 41 (9). pp. 1109-1116. ISSN 0126-6039,
Chowdhury, Z.Z. and Islam, M.S. and Khan, R.A. and Zain, Sharifuddin Md (2012) Preparation and characterizations of activated carbon from kenaf fiber for equilibrium adsorption studies of copper from wastewater. Korean Journal of Chemical Engineering, 29 (9). pp. 1187-1195. ISSN 02561115 , DOI https://doi.org/10.1007/s11814-011-0297-9.
Chowdhury, Z.Z. and Khalid, K. and Arami-Niya, A. and Khan, R.A. and Zain, Sharifuddin Md (2012) Process variables optimization for preparation and characterization of novel adsorbent from lignocellulosic waste. BioResources, 7 (3). pp. 3732-3754. ISSN 19302126 ,
Khalid, K. and Zain, Sharifuddin Md and Khan, R.A. (2011) Analysis of diffusion coefficient using reversed-flow gas chromatography-a review. American Journal of Applied Sciences, 8 (5). pp. 428-435. ISSN 15469239, DOI https://doi.org/10.3844/ajassp.2011.428.435.
Chowdhury, Z.Z. and Arami-Niya, A. and Ahmad, A.A. and Islam, M.S. and Khan, R.A. and Zain, Sharifuddin Md (2011) Application of central composite design for preparation of kenaf fiber based activated carbon for adsorption of manganese (II) ion. International Journal of Physical Sciences, 6 (31). pp. 7191-7202. ISSN 19921950 , DOI https://doi.org/10.5897/IJPS11.1510.
Khalid, K. and Zain, Sharifuddin Md and Khan, R.A. (2011) Determination of diffusion coefficients of selected long chain hydrocarbons using reversed- flow gas chromatographic technique. E-Journal of Chemistry, 8 (4). pp. 1916-1924. ISSN 09734945 ,
Khalid, K. and Zain, Sharifuddin Md and Khan, R.A. (2011) Determination of rate coefficients and diffusion coefficients of butanol using RF-GC methodologies. Studia Universitatis Babes-Bolyai Chemia (2). pp. 149-154. ISSN 12247154 ,
Chowdhury, Z.Z. and Ahmed, A.A. and Khan, R.A. and Zain, Sharifuddin Md (2011) Equilibrium kinetics and isotherm studies of CU (II) adsorption from waste water onto alkali activated oil palm ash. American Journal of Applied Sciences, 8 (3). pp. 230-237. ISSN 15469239, DOI https://doi.org/10.3844/ajassp.2011.230.237.
Chowdhury, Z.Z. and Ashraf, M.A. and Khan, R.A. and Zain, Sharifuddin Md (2011) Preparation, characterization and adsorption performance of the koh-activated carbons derived from kenaf fiber for lead (II) removal from waste water. Scientific Research and Essays, 6 (29). pp. 6185-6196. ISSN 19922248 , DOI https://doi.org/10.5897/SRE11.1436.
El-Hefian, E.A. and Nasef, M.M. and Yahaya, A.H. and Khan, R.A. (2010) Preparation and characterization of chitosan/agar blends: Rheological and thermal studies. Journal of the Chilean Chemical Society, 55 (1). pp. 130-136.
Low, K.H. and Khan, R.A. and Md Abas, M.R. and Zain, Sharifuddin Md (2009) Characterization of commercial chili sauce varieties according to their chemical and physical properties using chemometric methods. Sensing and Instrumentation for Food Quality and Safety. pp. 1-8. ISSN 1932-7587, DOI https://doi.org/10.1007/s11694-009-9086-0.
Juahir, H. and Toriman, M.E. and Mokhtar, M.B. and Yusoff, M.K. and Khan, R.A. and Zain, Sharifuddin Md (2009) Using chemometrics in assessing langat river water quality and designing a cost-effective water sampling strategy. Maejo International Journal of Science and Technology, 3 (1). pp. 26-42. ISSN 19057873,