Prof. K R Ranjith Mahanama
Department of Chemistry
Publications
Filter by type:
Investigations of heavy metals in decorative enamel paints in Sri Lanka
Investigations of heavy metals in decorative enamel paints in Sri Lanka [2016]. Ms. M.C. Lakmini, M.Sc. in Analytical Chemistry, University of Colombo
Investigation on the effective use of sludge from water treatment plant
Investigation on the effective use of sludge from water treatment plant [2016]. Mr. A.G.H. Viswajith, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. L.P.R.J. Wijesinghe, National Water Supply & Drainage Board, Ratmalana.
In vitro tyrosinase, inhibitory activity of Sri Lankan medicinal plants
Liyanaarchchi, G.D; Samarasekara, R.; Mahanama, K.R.R.; Hemalal, K.D.P. [2016]. In vitro tyrosinase, inhibitory activity of Sri Lankan medicinal plants. Presented at the ITI Biennial Research Symposium 2015, Industrial Technology Institute, November 16, Colombo.
Impurity profiling of cocaine [2016]. Ms. M.A.J. Fernando, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S. Tennakoon, Government Analyst Department, Colombo.
Impurity profiling and synthetic route of manufacture of amphetamine type stimulant drugs seized in Sri Lanka
Impurity profiling and synthetic route of manufacture of amphetamine type stimulant drugs seized in Sri Lanka [2016]. Ms. M.A.J. Fernando, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S. Tennakoon, Government Analyst Department, Colombo.
Impurity profiling and determination of synthetic route of manufacture of amphetamine type stimulant drugs in Sri Lanka
Impurity profiling and determination of synthetic route of manufacture of amphetamine type stimulant drugs in Sri Lanka [2016]. Ms. K.M.N. Chamalie, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S. Tennakoon, Government Analyst Department, Colombo.
Evaluating the tyrosinase elastase, hyaluronidase inhibitory and anti-oxidant properties of the ethanol extract of Camellia Sinensisas in refused tea; a potential cosmetic ingredient
Liyanaarchchi, G.D; Samarasekara, R.; Mahanama, K.R.R.; Hemalal, K.D.P. [2016]. Evaluating the tyrosinase elastase, hyaluronidase inhibitory and anti-oxidant properties of the ethanol extract of Camellia Sinensisas in refused tea; a potential cosmetic ingredient. Presented at the National Science Foundation Research Summit 2016 on Empowered by Research and Innovation. July 14-15, Colombo.
Estimation of shooting distance by analysis of gunshot residue by ICP-MS
Estimation of shooting distance by analysis of gunshot residue by ICP-MS [2016]. Ms. O.A.K.C. Dineshika, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisors: Mr. A. Welianga, Government Analyst Department, Colombo.
Drinking water requirement after major floods - A case study from Pathakada village in Kalutara District of Sri Lanka
Drinking water requirement after major floods – A case study from Pathakada village in Kalutara District of Sri Lanka [2016]. Mr. I.S. Gunasekara, M.Sc. in Disaster Analysis, Management and Mitigation, University of Colombo.
Development of identification methods for 2,4,6 trinitrotoulene (TNT) and cyclotrimetheine trinitramide (RDX) in explosives used in crime scenes
Development of identification methods for 2,4,6 trinitrotoulene (TNT) and cyclotrimetheine trinitramide (RDX) in explosives used in crime scenes [2016]. Ms. L.A.W.K. Dahanayake, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. A. Welianga and Mr. P.G. Madawala, Government Analyst Department, Colombo.
Chemical characterization and authentication of Caryota urens L. sap and products
Chemical characterization and authentication of Caryota urens L. sap and products [2016]. Mr. H.P.P.S. Somasiri, Ph. D., University of Colombo. Co-supervisor: Dr. G.A.S. Premakumara, Industrial Technology Institute, Colombo.
Analysis of barbiturates and phenothiazines in human blood and urine using solid phase extraction and gas chromatography/mass spectroscopy
Analysis of barbiturates and phenothiazines in human blood and urine using solid phase extraction and gas chromatography/mass spectroscopy [2016]. Ms. T.R.M.C.D. Menike, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S. Tennakoon, Government Analyst Department, Colombo.
An investigation into levels of hazardous metals in enamel paints
Lakmini, M.C; Mahanama, K.R.R. [2016]. An investigation into levels of hazardous metals in enamel paints. Presented at the Conference on Environmental Challenges for Sustainable Development: Role of Chemists, Institute of Chemistry. August 18-19, Colombo.
Air quality concerns in Sri Lanka; Current understandings, lessons learned, amicable solutions and conceivable future catastrophe
Mahanama, K.R.R. [2016]. Air quality concerns in Sri Lanka; Current understandings, lessons learned, amicable solutions and conceivable future catastrophe. Presented at the Conference on Environmental Challenges for Sustainable Development: Role of Chemists, Institute of Chemistry. August 18-19, Colombo.
A survey and investigation to evaluate the relationship of cancer to indoor air pollution
A survey and investigation to evaluate the relationship of cancer to indoor air pollution [2005]. Ms. M.A.K.K. P. Perera, M.Sc. in Analytical Chemistry, University of Colombo.
Studies on the quality of commercially available organic fertilizers in Sri Lanka
Studies on the quality of commercially available organic fertilizers in Sri Lanka [2015]. Mr. W.M.A.K. Wijesinghe, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: M.N.A. Mubarak, Industrial Technology Institute, Colombo
Quality characterization of commercial compost fertilizer – An alternative for the contamination risk of inorganic fertilizers
Wijesinghe, W.M.A.K.; Mahanama, K.R.R.; Mubarak, M.N.A.; Malavipathirana, S. [2015]. Quality characterization of commercial compost fertilizer – An alternative for the contamination risk of inorganic fertilizers. Presented at the Postgraduate Institute of Science Research Congress 2015, Postgraduate Institute of Science, University of Peradeniya, October 9-10, Peradeniya.
Mahanama, K.R.R. [2015]. Outdoor and Indoor air quality. A monograph published by National Science Foundation in Sinhala medium for school children. ISBN 978-955-590-118-5
Isolation of flavors from dry flowers of Aegle Marmelose (Beli Mal) and use them with bottled water as “Beli mal flowered drinking water”
Isolation of flavors from dry flowers of Aegle Marmelose (Beli Mal) and use them with bottled water as “Beli mal flowered drinking water” [2015]. Mr. M.W. Pushphakumara, M.Sc. in Applied Organic Chemistry, University of Colombo. Co-supervisor: Dr. N. Varnalulenderan, Eastern University, Trincomalee
Investigation of heavy metals in roadside dust particles and indoor depositions from selected locations in Gampaha District
Investigation of heavy metals in roadside dust particles and indoor depositions from selected locations in Gampaha District. [2015]. Ms. A. U. Gurusinghe, M.Sc. in Analytical Chemistry, University of Colombo
Wijegunawardena, G.M..; Mahanama, K.R.R. [2015]. Investigation of adulterated turmeric powder. Presented at the Annual Scientific Sessions 2015, Pharmaceutical Society of Sri Lanka, Sri Lanka Foundation Institute, August 1-2, Colombo.
In vitro tyrosinase, inhibitory activity of Sri Lankan medicinal plants
Liyanaarchchi, G.D; Samarasekara, R.; Mahanama, K.R.R.; Hemalal, K.D.P. [2015]. In vitro tyrosinase, inhibitory activity of Sri Lankan medicinal plants. Presented at the ITI Biennial Research Symposium 2015, Industrial Technology Institute, November 16 – 17, Colombo.
In vitro elastase, tyrosinase, inhibitory and antioxidant activity of Vetivera zizanioides
Liyanaarchchi, G.D; Samarasekara, R.; Mahanama, K.R.R.; Hemalal, K.D.P. [2015]. In vitro elastase, tyrosinase, inhibitory and antioxidant activity of Vetivera zizanioides. Presented at the 8th International Research Conference, General Sir John Kotalawala Defense University. August 27-28, Colombo.
In vitro elastase, tyrosinase, hyaluronidase inhibitory and antioxidant activities of Curcuma aromatia
Liyanaarchchi, G.D; Samarasekara, R.; Mahanama, K.R.R.; Hemalal, K.D.P. [2015]. In vitro elastase, tyrosinase, hyaluronidase inhibitory and antioxidant activities of Curcuma aromatia. Presented at the Annual Research Symposium 2015, University of Colombo, October 30, Colombo.
Development of a simple, cost effective reliable method for assessing paracetamol in pharmaceuticals
Development of a simple, cost effective reliable method for assessing paracetamol in pharmaceuticals [2015]. Mr. G.W.C.S. Perera, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Prof. M.D.P. De Costa, Department of Chemistry, University of Colombo
Development of a method to use gunshot residue as a forensic evidence to establish the shooter
Development of a method to use gunshot residue as a forensic evidence to establish the shooter [2015]. Mr. W.M.A. Kuamara, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. A. Welianga, Government Analyst Department, Colombo
Development of a method for the recycling of used lubrication oil
Development of a method for the recycling of used lubrication oil [2015]. Mr. D.S.P.C.D. Pathirana, M.Sc. in Analytical Chemistry, University of Colombo.
Development of a GC method to assess the adulteration of coconut oil by palm oil
Gamage, D.C.; Rajanayaka, R.M.G.B.; Mahanama, K.R.R.; [2015]. Development of a GC method to assess the adulteration of coconut oil by palm oil. Presented at the Annual Research Symposium 2015, University of Colombo, October 30, Colombo.
Development of a fluorimetric method for assessing paracetamol in pharmaceuticals
Perera, G.W.C.S.; Costa, M.D.P.de; Mahanama, K.R.R.; [2015]. Development of a fluorimetric method for assessing paracetamol in pharmaceuticals. Presented at the Annual Research Symposium 2015, University of Colombo, October 30, Colombo.
Determination of chlorothalonil residues in tomatoes by GC-ECD
Determination of chlorothalonil residues in tomatoes by GC-ECD [2015]. Ms. M.B.P. Perera, M.Sc. in Analytical Chemistry, University of Colombo.