Faculty of Natural and Agricultural Sciences
School of Physical Sciences
Department of Chemistry
Stefan, R-I
BSc MSc (Academy of Music Bucharest); BSc PhD (University of Bucharest) - Senior Lecturer
NRF Rating: P
Contact Details
Research Interests
Research Output
Contact Details:
Telephone number: 012 420 2510
Fax number: 012 362 5297
E-mail address: raluca.stefan@chem.up.ac.za
Research Interests:
Process Science
Research Output:
Research articles in refereed specialist journals:
Mulaudzi LV, van Staden JF, Stefan R-I: 2002. On-line determination of iron(II) and iron(III) using a spectrophotometric sequential injection system. Analytica Chimica Acta, 467, pp 35-49.
Stefan R-I, van Staden JF, Mulaudzi LV, Aboul-Enein HY: 2002. On-line simultaneous determination of S- and R-perindopril using amperometric biosensors as detectors in flow systems. Analytica Chimica Acta, 467, pp 189-195.
Mulaudzi LV, van Staden JF, Stefan R-I: 2002. Determination of chromium(III) and chromium(VI) by use of a spectrophotometric sequential injection system. Analytica Chimica Acta, 467, pp 51-60.
van Staden JF, Stefan R-I: 2002. New horizons in sequential injection kinetic analysis. Fresenius Journal of Analytical Chemistry, 374, pp 3-12.
van Staden JF, Mashamba MG, Stefan R-I: 2002. An on-line potentiometric sequential injection titration process analyser for the determination of acetic acid. Fresenius Journal of Analytical Chemistry, 374, pp 141-144.
Stefan R-I, van Staden JF, Aboul-Enein HY: 2002. On-line monitoring of R-captopril using an amperometric biosensor/sequential injection analysis system. Instrumentation Science and Technology, 30 (3), pp 243-250.
Stefan R-I, Aboul-Enein HY: 2002. The construction and characterization of an amperometric immunosensor for the thyroid hormone (+)-3,3',5,5'-tetraiodo-L-thyronine (L-T4). Journal of Immunoassay, 23 (4), pp 429-437.
Aboul-Enein HY, Stefan R-I, Litescu S, Radu GL: 2002. Biosensor for the enantioselective analysis of the thyroid hormones (+)-3,3',5-triiodo-L-thyronine T3) and (+)-3,3',5,5'-tetraiodo-L-thyronine (T4). Journal of Immunoassay, 23 (2), pp 181-190.
Stefan R-I, Makhafola MA, van Staden JF: 2002. Bienzymatic amperometric sensor for protein assay in milk. Preparative Biochemistry, 32 (2), pp 135-142.
Zagatto EAG, van Staden JF, Maniasso N, Stefan R-I, Marshall GD: 2002. Information essential for characterizing a flow-based analytical system. Pure and Applied Chemistry, 74 (4), pp 585-592.
van Staden JF, Mashamba MG, Stefan R-I: 2002. On-line determination of hydrochloric acid in process effluent streams by potentiometric sequential injection acid-base titration. South African Journal of Chemistry, 55, pp 43-55.
van Staden JF, Mashamba MG, Stefan R-I: 2002. On-line dilution and determination of the amount of concentrated hydrochloric acid in the final products from a hydrochloric acid production plant using a sequential injection titration system. Talanta, 58, pp 1089-1094.
van Staden JF, Mashamba MG, Stefan R-I: 2002. Determination of the total acidity in soft drinks using potentiometric sequential injection titration. Talanta, 58, pp 1109-1114.
Chapters in books:
Stefan R-I, Aboul-Enein HY, van Staden JF: 2002. Enantioselective Electrochemical Sensors. In Sensors Update, (2.1), Wiley-VCH, pp 123-141.
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