Dr. Hasini Rangika Perera

Dr. Hasini Rangika Perera

Senior Lecturer

Department of Chemistry,
University of Colombo,
Colombo 03,
Sri Lanka.
Room: 128
Work Phone: (9411) 2503 367
Work Fax: (9411) 2503 367
Email: hasini.perera@sci.cmb.ac.lk


  • Ph.D. in Analytical Chemistry -Oregon State University, Corvallis, OR May 2009
  • Bachelor of Science (Hons.) in Chemistry – University of Colombo, Sri Lanka July 2004


  • Senior Lecturer University of Colombo                  August 2009 – Present
  • Responsibility: Conducting lecturers and laboratory sessions in chemistry for undergraduates. Mentoring research projects of Chemistry majors, MSc students.

  • Graduate Teaching Assistant, Oregon State University, OR.         September 2005 – July 2009
  • Responsibility: Conducting laboratory sessions for chemistry majors (CH 461 & CH 462), and for non-chemistry majors who will use analytical chemistry techniques in routine analysis (CH 324). These include teaching students the basic electronics and optics, AAS, ICP-MS, HPLC, GC-MS, TGA, Ion selective electrode potentiometry, spectrofluorometry. Conducting recitations and laboratory sessions for general chemistry, which involves teaching basic principles in chemistry for college freshmen.

  • Assistant Lecturer   University of Colombo     August 2004 – August 2005
  • Responsibility: Conducting recitation and laboratory sessions in General Chemistry. Assisted the supervisor in designing experiments, prepared the required test solutions, analyzed and summarized data sets.


  • Graduate Research Assistant   Oregon State University, OR       July 2006 – July 2009
  • Responsibility: Academic research efforts are based on application of non-equilibrium electrochemical methods to ion selective sensors. These sensors are used in obtaining improved, unbiased selectivity for existing ion carriers. Involved in the development of solid contact sensors.

  • Chemical Analyst (Internship),  GlaxoSmithKline Ceylon Ltd., Sri Lanka  June 2003 – Sep. 2003
  • Responsibility: Analyzed intermediates and finished drug products using set methods and various analytical instruments including LC, pH meter, refractive index and optical rotation. Observed the manufacturing process of a drug.

  • Lab Technician  Industrial Technology Institute, Sri Lanka  January 2000 – January 2001
  • Responsibility: Sampled and analyzed building materials, metals, minerals and mineral based products using methods specified in British Standards/ International Standards. Operated high temperature furnace, UV-Vis spectrometer and AAS.


  1. Perera H., Shvarev A. Determination of Unbiased Selectivity Coefficients Using Pulsed Chronopotentiometric Polymeric Membrane Ion Sensors, Chem. 2008, 80, 7870-7875
  2. Blakemore P.R., Milicevic S.D., Perera H., Shvarev A., Zakharov L.N. Synthesis 2008, 14, 2271-2277
  3. Perera H., Shvarev A. Unbiased Selectivity Coefficients Obtained for the Pulsed Chronopotentiometric Polymeric Membrane Ion Sensors, Am.Chem.Soc. 2007,129 (51) 15754 – 15755 (Communication)
  4. Perera H., Fordyce K.M., Shvarev A. Pulsed Galvanostatic Control of Solid-State polymeric Ion-Selective Electrodes, Chem. 2007, 79(12), 4564-4573.
  5. Perera, K.M., Perera, L.H.R., Development and Characterization of a Potentiometric Ion Selective Electrode for the Determination of Zinc(II) ions,9th International Research Conference, KDU, Sri Lanka, September 8-9, 2016
  6. Halwatura, S., Perera, H.R., Curcumin Imprinted Polypyrrole Ion Selective Electrodes, Wayamba International Conference 2014 (WinC 2014), Wayamba University, Sri Lanka, 29-30 August, 2014.
  7. Shamala, J.A.K., Perera, H.R., De Silva,W.R.M., De Silva, K.M., Development of Conductive Textile using Electropolymerization of Pyrrole on Graphite and its Characterization, The International Conference in Chemical Education, College of Chemical Sciences, Institute of Chemistry Ceylon, 2014
  8. Perera, G. G. P. S., Perera, H.R., Enhance the enthusiasm of students to carry out the practical component of chemistry in advanced level syllabus, The International Conference in Chemical Education, College of Chemical Sciences, Institute of Chemistry Ceylon, 2014
  9. Nissanka, N.A.A.B., Ruvini, H.H.A.M., Vithanage, T.G., Perera, H.R., Kaumal, M.N., Fabrication and development of novel and simple paper based electrochemical sensors, Annuanl Research Symposium, University of Colombo, Sri Lanka, 21 November, 2014
  10. Ruvini, H.H.A.M., Vithanage, T.G., Nissanka, N.A.A.B., Perera, H.R., Kaumal, M.N., A novel electrochemical method for the determination of caffeine using phenol formaldehyde polymer modified carbon paste electrode, Annuanl Research Symposium, University of Colombo, Sri Lanka, 21 November, 2014
  11. Vithanage, T.G., Nissanka, N.A.A.B., Ruvini, H.H.A.M., Perera, H.R., Kaumal, M.N., Development of a novel carbon paste electrode for the simultaneous determination of lead and cadmium in water, Annuanl Research Symposium, University of Colombo, Sri Lanka, 21 November, 2014
  12. Pradeep E.K.C., Herath H.M.P.C.K., Perera H.R., Li, C.Y., Dissanayake D.P, Comparison of Polyaniline and Polypyrrole based Humidity Sensors, 4th Intermational Symposium on Frontier Technology (ISFT 2013), Shenyang, China, July 26-29, 2013
  13. Perera H., Shvarev A., Improved Selectivity Coefficients of Galvanostatically Controlled Ion-Selective Sensors, PITTCON, New Orleans, LA, March 2-7, 2008
  14. Perera H., Shvarev A., Solid Contact Pulsed Galvanostatic Sensors, PITTCON, Chicago, IL, February 25-March 2, 2007.


  • Milton Harris Graduate Fellowship (Summer 2007, Oregon State University (OSU))
  • Courtney Dorothy Benedict Award for the graduate student in Chemistry who has demonstrated excellence in Research (2007, OSU)
  • Chemistry Department Laboratory TA award (Spring 2007, OSU)
  • Ingram award for the outstanding first year graduate student in Chemistry (2006, OSU)
  • Justin Samarasekara Award for the Most Outstanding Science Student of the Year (2005, University of Colombo)
  • Dharmachandra & Thamarasa Gunawardana Memorial Award for Analytical Chemistry (2005, University of Colombo)
  • Professor R.S. Ramakrishna Gold Medal for Inorganic Chemistry (2005, University of Colombo)

My Courses