Antioxidant and enzyme inhibitory activities of selected medicinal plants and chemical characterization of phytoceuticals of Atrocarpus nobilis and its topical applications [2020]. Ms. G.D. Liyanarachchi, Ph.D., University of Colombo. Co-supervisors. Dr. R. Samarasekara, Industrial Technology Institute, Dr. K.D.P. Hemalal, Rocky Mountain Soap Company, Canada.

Study of making compost for organic farming from biological sludge waste of waste water treatment plant [2018]. Mr. L. Seneviratne, Master of Environment Management, University of Colombo.

Proposed waste management models for households, schools and municipal councils [2018]. Mr. J.M.R.A.B. Jayathilaka, M.Sc. in Chemistry Education, University of Colombo. Co-supervisors: Prof. Namal Priyantha, Dr. Udena Ranathunga. University of Peradeniya.

Development of a gas chromatographic fingerprint to investigate the quality of toddy [2018]. Ms. S. Kulali, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. G. Ramanah, Government Analyst Department, Colombo.

Arson investigation by GC/MS detection of petrol traces from different carpet substrates [2018]. Mr. W.P.A.R.D. Bandara, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Mr. A. Welianga, Government Analyst Department, Colombo.

Quantitative and qualitative analysis of cyanide in blood by headspace gas chromatography/mass spectroscopy [2016]. Ms. H.T.T. Priyadarshani, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S. Tennakoon, Government Analyst Department, Colombo.

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.

Investigations on e-waste problem in Sri Lanka: A case study with special reference to Sri Lankan citizens and licensed collectors of e-waste management in Sri Lanka [2016]. Mr. H.L.A.M de Silva, M.Sc. in Disaster Analysis, Management and Mitigation, University of Colombo.

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 [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.

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 [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 [2016]. Ms. K.M.N. Chamalie, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Ms. S. Tennakoon, Government Analyst Department, Colombo.

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 [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 [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 [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 [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.

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 [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

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. [2015]. Ms. A. U. Gurusinghe, M.Sc. in Analytical Chemistry, University of Colombo

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 [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 [2015]. Mr. D.S.P.C.D. Pathirana, M.Sc. in Analytical Chemistry, University of Colombo.

Determination of chlorothalonil residues in tomatoes by GC-ECD [2015]. Ms. M.B.P. Perera, M.Sc. in Analytical Chemistry, University of Colombo.

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

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 [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 [2014]. Mr. A. Premathilaka, M.Sc. in Analytical Chemistry, University of Colombo. Co-supervisor: Dr. N. Punyasiri, Tea Research Institute, Thalawakele.