Prof. K R Ranjith Mahanama
Department of Chemistry
Publications
Filter by type:
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.
Headspace-solid phase micro extraction-gas chromatography-mass spectrometric (HS-SPME-GC-MS) analysis of volatile components of Caryota urens L. (Kithul palm) treacle
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Abeygunwardena, C; Mahanama, K.R.R. [2013]. Headspace-solid phase micro extraction-gas chromatography-mass spectrometric (HS-SPME-GC-MS) analysis of volatile components of Caryota urens L. (Kithul palm) treacle. Presented at the Young Scientists Forum Symposium 2013, January 18, Colombo.
Fingerprinting diesel and petrol fuels for adulteration in Sri Lanka
Kulathunga, D.R.;Mahanama, K.R.R. [2013]. Fingerprinting diesel and petrol fuels for adulteration in Sri Lanka. J. Natn. Sci. Foundation Sri Lanka 41, 287 – 292.
Effect of sodium 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. Presented at the Third International Symposium, SEUSL, July 06 – 07, Oluvil Sri Lanka.
Determination of polycyclic aromatic hydrocarbons (PAHs) in drinking water from Colombo and Jaffna Districts
Determination of polycyclic aromatic hydrocarbons (PAHs) in drinking water from Colombo and Jaffna Districts [2013]. Mr. W.A.U.K. Wickramasinghe, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S.L. Rajasingham, SGS Lanka, Colombo
Analysis of volatile components of Caryota urenus L. (Kithul palm) treacle by head space – solid phase micro extraction – gas chromatography-mass spectroscopy (HS-SPME-GC-MS)
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2013]. Analysis of volatile components of Caryota urenus L. (Kithul palm) treacle by head space – solid phase micro extraction – gas chromatography-mass spectroscopy (HS-SPME-GC-MS). Presented at the Annual Research Symposium 2013, Industrial Technology Institute, October 23 – 24, Colombo.
Air We Breathe: An Investigation into Air Quality
Mahanama, K.R.R. [2013]. Air We Breathe: An Investigation into Air Quality. Vidurawa, 30(2), 9-14.
SDS-PAGE analysis of 8 endotoxins of local strains and screening of type I exotoxins by HPLC
SDS-PAGE analysis of 8 endotoxins of local strains and screening of type I exotoxins by HPLC [2012]. Ms. D.M.J.C. Dissanayake, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Prof. T.C. Bamunuarachchi, University of Peradeniya, Kandy.
Pollution on the selected stagnant water bodies South Eastern Sri Lanka
Haniffa, M.A.C.M.; Senthilnithy, R.; Mahanama, K.R.R. [2012]. Pollution on the selected stagnant water bodies South Eastern Sri Lanka. Presented at the Seventeenth International Forestry and Environmental Symposium, Department of Forestry and Environmental Science, University of Sri Jayewardenepura. November 16 – 17, Wattala.
Investigation on the use of used polyethylene teraphthalate bottles to remove the hazardous polycyclic aromatic hydrocarbons from coconut oil
Investigation on the use of used polyethylene teraphthalate bottles to remove the hazardous polycyclic aromatic hydrocarbons from coconut oil [2011]. Ms. R.M.R.K. Rathnayake, M.Sc. in Analytical chemistry, University of Colombo
Investigation of the contribution of ambient ozone level to the asthma prevalence among the school children in Gampaha district
Fernando, A.T.R.; Mahanama, K.R.R. [2012]. Investigation of the contribution of ambient ozone level to the asthma prevalence among the school children in Gampaha district. Presented at the Fifth National Symposium on Air Resource Management in Sri Lanka. May 11, Colombo.
Investigation of contribution of ambient ozone level to the asthma prevalence among the school children
Investigation of contribution of ambient ozone level to the asthma prevalence among the school children [2012]. Ms. A.T.R. Fernando, M.Sc. in Analytical Chemistry, University of Colombo.
Free amino acid profiles of Caryota urens L. (Kithul palm) sap, treacle and jiggery
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2012]. Free amino acid profiles of Caryota urens L. (Kithul palm) sap, treacle and jiggery. Presented at the Annual Research Symposium 2012, University of Colombo, November 28, Colombo.
Edited Environmental Chemistry of the Atmosphere
Edited Environmental Chemistry of the Atmosphere [2012]. Author Dr. S. S. Iqbal. Published by the Open University of Sri Lanka. ISBN 978-955-23-1344-8.
Development of a high performance liquid chromatographic assay method for chlorophenamine malate in tablets
Development of a high performance liquid chromatographic assay method for chlorophenamine malate in tablets [2012]. Ms. A. Vinothan, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. A. Munasinghe, State Pharmaceutical Cooperation, Colombo.
Assessment of heavy metals in black tea produced in different agro-ecological regions of Sri Lanka
Damayanthi, A.D.M.; Amarakoon, A.M.T.; Mahanama, K.R.R. [2012]. Assessment of heavy metals in black tea produced in different agro-ecological regions of Sri Lanka. Presented at the Annual Research Symposium 2012, University of Colombo, November 28, Colombo.
Analysis of benzoic acid sorbic acid in some selected food items available in Sri Lanka
Analysis of benzoic acid sorbic acid in some selected food items available in Sri Lanka [2012]. Ms. U.L. Kathriarachchi, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. D. Seneviratne, Government Analyst’s Department, Colombo.
Analysis of benzoic acid and sorbic acid in some selected food items available in Sri Lanka
Kathriarachchi, U.L.; Senevirathne, D.; Mahanama, K.R.R. [2012]. Analysis of benzoic acid and sorbic acid in some selected food items available in Sri Lanka. Presented at the Annual Research Symposium 2012, University of Colombo, November 28, Colombo.
A simple test kit for the detection of adulteration of Caryoto urens L. (kithul palm) sap and treacle with cane sugar
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Ranasinghe P. Mahanama, K.R.R. [2012]. A simple test kit for the detection of adulteration of Caryoto urens L. (kithul palm) sap and treacle with cane sugar. Presented at the Young Scientist Forum, National Science and Technology Commission. January 21, Colombo.
Spectroscopic methods for screening Sudan dyes from chili products
Spectroscopic methods for screening Sudan dyes from chili products [2011]. Ms. E.H.M. Ranasinghe, M.Sc. in Analytical Chemistry, University of Colombo
Photochemistry in the Atmosphere
Mahanama, K.R.R. [2011]. Photochemistry in the Atmosphere. Chem. Sri Lanka 28 (3), 18 – 21.
Free amino acid profile of kithul palm Caryotourens L. treacle and its potential application in authentication of treacle types
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2011] Free amino acid profile of kithul palm Caryotourens L. treacle and its potential application in authentication of treacle types. Proceedings 12th Government Food analysts Conference. 142-147
Free amino acid profile of kithul palm Caryoto urens L. treacle and its potential application in authentication of treacle types
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2011]. Free amino acid profile of kithul palm Caryoto urens L. treacle and its potential application in authentication of treacle types. In Technology for food Quality G. Graham, M. Netzel, T. Graham, M. Fletcher, G. Karagianis, C.Giles, U. Tinggi and P. Scheelings [Eds]. Health and Food Sciences Precinct, Queensland, Australia.
Free amino acid profile of kithul palm Caryoto urens L. treacle and its potential application in authentication of treacle types
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2011]. Free amino acid profile of kithul palm Caryoto urens L. treacle and its potential application in authentication of treacle types. In Technology for food Quality G. Graham, M. Netzel, T. Graham, M. Fletcher, G. Karagianis, C.Giles, U. Tinggi and P. Scheelings [Eds]. Health and Food Sciences Precinct, Queensland, Australia.
Free amino acid profile of kithul palm Caryoto urens L. treacle and its potential application in authentication of treacle types
Somasiri, H.P.P.S.; Premakumara, G.A.S.; Mahanama, K.R.R. [2011]. Free amino acid profile of kithul palm Caryoto urens L. treacle and its potential application in authentication of treacle types. Presented at the 12th Government Food analysts Conference. February 22 – 24, Brisbane Queensland, Australia.
Evaluation of the pesticide distribution between soil and ground water
Evaluation of the pesticide distribution between soil and ground water [2011]. Mr. H.D.P. Fonseka, M.Sc. in Analytical Chemistry, University of Colombo
Application of the removal of lead and cadmium ions from aquatic systems using structurally different forms of rice husk ashes
Application of the removal of lead and cadmium ions from aquatic systems using structurally different forms of rice husk ashes [2011]. Mr. M.M. S. Premalal, M.Sc. in Analytical Chemistry, University of Colombo
A study on the agricultural runoff and other improper waste disposal degrading the quality of stagnant water bodies in South Eastern region of Sri Lanka
A study on the agricultural runoff and other improper waste disposal degrading the quality of stagnant water bodies in South Eastern region of Sri Lanka [2011]. Mr. M.A.C. Mohamed Haniffa M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Dr. R. Senthilnithy, South Eastern University of Sri Lanka, Oluvil
Variation of water quality along Kalu Ganga [2010]. Mr. D.N.P. Welikala, M.Sc. in Analytical Chemistry, University of Colombo
Quantitative analysis of fat soluble vitamin A and vitamin E from consumer products
Quantitative analysis of fat soluble vitamin A and vitamin E from consumer products [2010]. Ms. P.S.F. Perera, M.Sc. in Analytical chemistry, University of Colombo