Chandrasiri, G.U.; Mubarak, M.N.A.; Manthilaka, K.; Mahanama, K.R.R.; [2019]. Single laboratory validation of determination of 13 trace elements in rice by ICP-MS with an overview of challenges encountered. Am. J. Anal. Chem. 10(9), 367-376.

Jayathunga, H.G.T.H.; Somasiri, HPPS.; Mahanama, K.R.R.; [2020]. Rapid determination of adulteration in virgin and copra coconut oil using Fourier transform near infrared spectroscopy. Int. J. Food. Sci. Nutr. 5(3), 38-43.

Liyanaarchchi, G.V.V.; Mahanama, K.R.R.; Somasiri, H.P.P.; Punyasiri, P.A.N.; Kottawa-Arachchi J.D. [2020] Analysis of total amino acids in rice using a validated reversed-phase high performance liquid chromatographic method with died array detection (RP-HPLC-DAD). Int. J. Analyt. Bioanaytl. Methods. 2 (008)

Liyanaarchchi, G.V.V.; Mahanama, K.R.R.; Somasiri, H.P.P.; Punyasiri, P.A.N. [2018]. Validation of a reversed-phase high-performance liquid chromatographic method for the determination of free amino acids in rice using L-theanine as the internal standard. Food Chem. 240, 196-203.

Perera, G.W.C.S.; de Costa, M.D.P.; Mahanama, K.R.R.; [2019]. Development of a fluorimetric method for assessing paracetamol in pharmaceutical tablets. J. Photoch Photobio A 368, 248-253.

Liyanaarchchi, G.D.; Samarasekara, J.K.R.R.; Mahanama, K.R.R.; Hemalal, K.D.P. [2018]. Tyrosinase, elastase, hyaluronidase, inhibitory and antioxidant activity of Sri Lankan medicinal plants for novel cosmeceuticals. Ind. Crops Prod. 111, 597-605.

Liyanaarchchi, G.V.V.; Mahanama, K.R.R.; Somasiri, H.P.P.; Punyasiri, P.A.N. [2018]. Development and validation of a method for direct, underivatized analysis of free amino acids in rice using liquid chromatography – tandem mass spectrometry. J. Chrom. A. 1568, 131-139.

Premaratne, G.; Rajasinghm, S.; Mahanama, K.R.R. [2017]. Investigation on potentially hazardous hexavalent chromium and heavy metals in leather products. Inter. J. Basic Sci. Appl. Res. 6(1), 19 – 26.

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.

Kularatne, K.I.A.; Dissanayake, D.P.; Mahanama, K.R.R. [2003] Contribution of dissolved sulfates and sulfides in hydrogen sulfide emission from stagnant water bodies in Sri Lanka. Chemosphere 52, 901-907

Hettige, C.; Mahanama, K.R.R.; Dissanayake, D.P. [2001]. Cyclohexane oxidation and carbon deposition over metal oxide catalysts. Chemosphere 43, 1079-1083

ayathilaka, G.D.L.P; Hettige, C.; Mahanama, K.R.R.; Dissanayake, D.P. [2001]. Carbon formation during volatile organic compound oxidation over a nickel catalyst. Ind. J. Chem.-Section A. 40A, 392-395

Daisey, J.M.; Mahanama, K.R.R.; Hodgson, A.T. [1997]. Toxic volatile organic compounds in simulated environmental tobacco smoke: Emission factors for exposure assessment. J. Exp. Anal. Environ. Epidem. 8, 313-334

Mahanama, K.R.R.; Daisy, J.M. [1996]. Volatile N-nitrosamines in environmental tobacco smoke: Sampling, analysis and source emission factors. Environ. Sci. & Tech. 30, 1477-1484

Hodgson, A.T.; Daisey, J.M.; Mahanama, K.R.R.; Ten Brinke, J.A.; Alevantis, L.E. [1996]. Use of volatile tracers to determine the contribution of environmental tobacco smoke to concentrations of volatile organic compounds in smoking environments. Environ. Int. 22, 295-307.

Gundel, L.A.; Mahanama, K.R.R.; Daisey, J.M. [1995]. Semi-volatile and particulate polycyclic aromatic hydrocarbons in environmental tobacco smoke: Cleanup, speciation and emission factors. Environ. Sci. & Tech. 29, 1607-1614.

Wampler, D.A.; Miller-Leiden, S.; Nazaroff, W.W.; Litvak, A.; Mahanama, K.R.R.; Nematollahi, M.; Gadgil A.J. [1995]. Effectiveness of smokeless ashtray. J. Air & Waste Manage. Assoc. 45, 494-500

Gundel, L.A.; Lee, V.C.; Mahanama, K.R.R.; Stevens, R.K.; Daisey, J.M. [1995]. Direct determination of the phase distribution of semi-volatile polycyclic aromatic hydrocarbons using annular denuders. Atmos. Environ. 29, 1719-1733

Mahanama, K.R.R.; Gundel, L.A.; Daisey, J.M. [1994]. Selective fluorescence detection of polycyclic aromatic hydrocarbons in environmental tobacco smoke and other airborne particles. Int. J. Environ. Anal. Chem. 56, 289-309.

Gundel, L.A.; Mahanama, K.R.R.; Daisey, J.M. [1993]. Fractionation of polar organic extracts of airborne particulate matter using cyanopropyl bonded silica in solid phase extraction. J. Chromatogr. 629, 75-82

Schneiderman, M.A.; Sharma, A.K.; Mahanama, K.R.R.; Locke, D.C. [1988]. Determination of vitamin K-1 in the commercial infant formulae using supercritical fluid extraction and HPLC with electrochemical detector. J. Assoc. Offic. Anal. Chem., 71, 815-817.