Prof. K R Ranjith Mahanama
Department of Chemistry
Publications
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A geographical perspective of issues related to the disposal of urban solid waste in the wet and intermediate agro-ecological zones in Sri Lanka
A geographical perspective of issues related to the disposal of urban solid waste in the wet and intermediate agro-ecological zones in Sri Lanka [2015]. Ms. U.F. Rusaik, Ph. D., University of Colombo. Co-supervisor: Prof. Jayanthi De Silva, Department of Geography, University of Colombo
The study of the impact of agricultural runoff and improper waste disposal on stagnant water bodies in South Eastern Sri Lanka
Haniffa, M.A.C.M.; Senthilnithy, R.; Mahanama, K.R.R. [2014]. The study of the impact of agricultural runoff and improper waste disposal on stagnant water bodies in South Eastern Sri Lanka. Presented at the International Conference on Chemical Education, College of Chemical Sciences, Institute of Chemistry Ceylon. April 03 – 04, Colombo.
The impact of organic contamination on the dynamic equilibrium of dissolve oxygen in selected water bodies in South East Sri Lanka
Haniffa, M.A.C.M.; Senthilnithy, R.; Mahanama, K.R.R. [2014]. The impact of organic contamination on the dynamic equilibrium of dissolve oxygen in selected water bodies in South East Sri Lanka. Presented at the Eighteenth International Forestry and Environmental Symposium, Department of Forestry and Environmental Science, University of Sri Jayewardenepura. January 10 – 11, Thulhiriya.
Quantification of pesticide residues in black tea by GC- MS
Premathilaka, K.A.B.G.; Punyasiri, N.; Mahanama, K.R.R. [2014]. Quantification of pesticide residues in black tea by GC- MS. Presented at the Annual Research Symposium 2014, University of Colombo, November 21, Colombo.
Preliminary investigation of heavy metals exposure to different occupations
Rambukwella, R.M.H.K.; Waduge, V.A.; Mahanama, K.R.R. [2014]. Preliminary investigation of heavy metals exposure to different occupations. Presented at the Annual Research Symposium 2014, University of Colombo, November 21, Colombo.
nvestigation of adulterants from turmeric samples in Sri Lanka
Investigation of adulterants from turmeric samples in Sri Lanka [2014]. Ms. A.P. Keerthikumara, M.Sc. in Analytical Chemistry, University of Colombo.
Method Validation for chlorophenaminemeleate in pharmaceutical preparations
Method Validation for chlorophenaminemeleate in pharmaceutical preparations [2014]. Ms. K.S. Indikadahena, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Dr. K.K.G.P.B. Herath, Astron Ltd., Ratmalana
Method development for analysis of selected pesticide residues in black tea
Method development for analysis of selected pesticide residues in black tea [2014]. Mr. A. Premathilaka, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Dr. N. Punyasiri, Tea Research Institute, Thalawakele.
Investigation of heavy metals in roadside dust particles and indoor depositions from selected locations in Gampaha District
Gurusinghe, A.U.; Mahanama, K.R.R. [2014]. Investigation of heavy metals in roadside dust particles and indoor depositions from selected locations in Gampaha District. Presented at the Annual Research Symposium 2014, University of Colombo, November 21, Colombo.
Investigation of heavy metals exposure to different occupations
Investigation of heavy metals exposure to different occupations [2014]. Ms. H. Rambukwella, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. V.A. Waduge, Atomic Energy Authority, Colombo
Impact of urban drainage on dynamic equilibrium of dissolved oxygen in water bodies of Sri Lanka
Haniffa, M.A.C.M.; Senthilnithy, R.; Mahanama, K.R.R. [2014]. Impact of urban drainage on dynamic equilibrium of dissolved oxygen in water bodies of Sri Lanka. Thirteenth international conference on urban drainage. September 07-12, Sarawak, Malaysia.
Development of a method to use gunshot residue as a forensic evidence to establish the shooter
Kumara, W.M.A.; Welianga, A.; Mahanama, K.R.R. [2014]. Development of a method to use gunshot residue as a forensic evidence to establish the shooter. Presented at the Annual Research Symposium 2014, University of Colombo, November 21, Colombo.
Development of a GC fingerprint method for the determination of the diesel adulterants
Development of a GC fingerprint method for the determination of the diesel adulterants [2014]. Mr. D.M.G.C. Bandara, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. A. Welianga, Government Analyst Department, Colombo
Determination of hexavalent chromium and other heavy metals in leather products of Sri Lanka
Determination of hexavalent chromium and other heavy metals in leather products of Sri Lanka [2014]. Mr. A.G.G.C. Premaratne, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S.L. Rajasingham, SGS Lanka, Colombo.
Determination of food composition and nutrient labeling of selected agricultural products in Sri Lanka
Determination of food composition and nutrient labeling of selected agricultural products in Sri Lanka [2014]. Ms. E.M.S. Isanka, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. H.P.P.S. Somasiri, Industrial Technology Institute, Colombo.
Determination of Cr(VI) and other heavy metals in leather products of Sri Lanka
Premaratne, A.G.G.S.; Rajasinghe, S.L.; Mahanama, K.R.R. [2014]. Determination of Cr(VI) and other heavy metals in leather products of Sri Lanka. Presented at the Annual Research Symposium 2014, University of Colombo, November 21, Colombo.
Contribution of organic contaminations and nutrient level on dynamic equilibrium of dissolved oxygen in water bodies of coastal belt of Ampara
Haniffa, M.A.C.M.; Senthilnithy, R.; Mahanama, K.R.R. [2014]. Contribution of organic contaminations and nutrient level on dynamic equilibrium of dissolved oxygen in water bodies of coastal belt of Ampara. Proceedings of fourth international symposium 2014, SEUSL, Oluvil Sri Lanka. 480-486
Contribution of organic contaminations and nutrient level on dynamic equilibrium of dissolved oxygen in water bodies of coastal belt of Ampara
Haniffa, M.A.C.M.; Senthilnithy, R.; Mahanama, K.R.R. [2014]. Contribution of organic contaminations and nutrient level on dynamic equilibrium of dissolved oxygen in water bodies of coastal belt of Ampara. Fourth international symposium 2014, SEUSL, August 02-03, Oluvil Sri Lanka.
Comparative analysis of composition of polyaluminium chloride used for water treatment in Sri Lanka
Comparative analysis of composition of polyaluminium chloride used for water treatment in Sri Lanka [2014]. Ms. A.S. Saputhanthri, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. L.P.R.J. Wijesinghe, National Water Supply & Drainage Board, Ratmalana.
Assessment of quality of coconut oil and its adulterations with oil
Assessment of quality of coconut oil and its adulterations with oil [2014]. Ms. D.A. Gamage, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. R.M.G.B. Rajanayake, Public Health Department, Colombo
An investigation to assess the performance of wastewater treatment plant of Seethawaka export processing system
An investigation to assess the performance of wastewater treatment plant of Seethawaka export processing system [2014]. Ms. V.P.L. Jayawardena, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. S. Sumanaweera, National Water Supply & Drainage Board, Ratmalana
Nutrition labelling of kithul (Caryota urnes) sap, treacle and juggery
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2014]. Nutrition labelling of kithul (Caryota urnes) sap, treacle and juggery. Presented at the Annual Research Symposium 2014, University of Colombo, November 21, Colombo.
You Smoke + We Inhale = Passive Smoking
Mahanama, K.R.R. [2013]. You Smoke + We Inhale = Passive Smoking. Resonance, 8 – 14.
University, community and cooperate partnership: A study of service learning projects in the University of Colombo
Wickramasinghe, D.D.; Ranwala, S.W.M; Mahanama, K.R.R.; Kaumal, M.N.: Kathriarachchi, H.; Hettiarachchi, C. [2013]. University, community and cooperate partnership: A study of service learning projects in the University of Colombo. Presented at the 69th Annual Sessions of the Sri Lanka Association for the Advancement of Science, University of Kelaniya, December 02 – 06, Kelaniya.
Study of the use of biogeofilter for the purification of waste water
Study of the use of biogeofilter for the purification of waste water [2013]. Ms. G. S. M. Fonseka, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Dr. (Mrs) B. C. L. Atapattu and Dr. (Mrs) S. Iqbal, Open University of Sri Lanka, Nawala
Study of catalytic oxidation efficiency of titanium oxide coated on activated carbon
Study of catalytic oxidation efficiency of titanium oxide coated on activated carbon [2013]. Mr. R.B. Warnakulasooriya, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Dr. D.P. Dissanayake, Department of Chemistry, University of Colombo
ium concentration of inland water bodies related to paddy cultivated land in South Eastern region
Haniffa, M.A.C.M.; Senthilnithy, R.; Mahanama, K.R.R. [2013]. Effect of sodium concentration of inland water bodies related to paddy cultivated land in South Eastern region. Proceedings of third international symposium 2013, SEUSL, Oluvil Sri Lanka. 104 – 109.
Investigation of milk powder for fat adulteration [2013]. Ms. W.M.K.S. Gunaratne, M.Sc. in Analytical Chemistry, University of Colombo.
Investigating the emission of formaldehyde from common wood products used in Sri Lanka
Investigating the emission of formaldehyde from common wood products used in Sri Lanka [2013]. Mr. C. K. Kosgahakumbura, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S.L. Rajasingham, SGS Lanka, Colombo
Identification of treacle type by analysis of volatile components using head space-solid phase micro extraction - gas chromatography-mass spectrometry (HS-SPME-GC-MS)
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2013]. Identification of treacle type by analysis of volatile components using head space-solid phase micro extraction – gas chromatography-mass spectrometry (HS-SPME-GC-MS). Presented at the Annual Research Symposium 2013, University of Colombo, October 03, Colombo.