Science and Technology

Science and Engineering provides an international channel for the publication of theoretical and experimental studies. The journal publishes issues of rigorous and original contributions devoted to a wide range of subfields in the engineering and sciences.


Feyzullah TOKAY

Research Scientist, Balıkesir University, Turkey

Research Areas

Analytical Chemistry, Food Analysis, Metal Determination, Chemometrics, Preconcentration, Separation Techniques, Fractionation

Publications: Journals

[1]  Bağdat Yaşar, S., Köse Baran, E., TOKAY, F., “Element Fractionation Analysis for Milk in Its Real Matrix by Inductively Coupled Plasma Optical Emission Spectrometry” Spectroscopy Letters, vol.46, p. 100-108, 2013.
[2]  Bağdat Yaşar, S., Köse Baran, E., TOKAY, F., “Element fractionation analysis for infant formula and food additives by inductively coupled plasma optical emission spectrometry” International Journal of Food Science and Technology, vol. 49, pp. 392-398, 2014.
[3]  TOKAY, F., Bağdat, S., “Determination of Iron and Copper in Edible Oils by Flame Atomic Absorption Spectrometry after Liquid-Liquid Extraction”, ournal of the American Oil Chemists’ Society, vol.92, pp. 317-322, 2015.
[4]  TOKAY, F., Bağdat, S., “Simultaneous Preconcentration of Cd(II) and Pb(II) with N,N'-bis(4-methoxysalicylidene) ethylenediamine Coated Silica Gel Prior to determination by Flame Atomic Absorption Spectrometry”, Water, Air, and Soil Pollution, vol. 226 (48), pp. 1-9, 2015.
[5]  TOKAY, F., Bağdat, S., "Evaluation of Humic Acid Content and Zinc Levels in Soil, Olive Fruit and Leaf Samples in Edremit Bay", International Journal of Chemical Separation Technology, vol.1, pp. 1-7, 2015

Publications: Conferences/Workshops/Symposiums

[1]  Bağdat Yaşar, S., Tokay, F., “A Novel Extraction Method For Zinc from Olive Oil and Determination with FAAS”, (8th Euro Fed Lipid Congress, Munich-Germany, 2010)
[2]  Tokay, F., Yaşar, S. B., “Direct Iron Determination in Liquid Edible Oils by Uv-Vis Spectrophotmeter”, (8th Aegean Analytical Chemistry Days, İzmir, Türkiye, 2012).
[3]  Dağdelen, A., Bağdat Yaşar, S., Özkan, G., Tokay, F., “Determination and Comparison of Trace Elements in Hazelnut Oils Which are Obtained with Different Methods” (10th Euro Fed Lipid Congress, Cracow-Poland, 2012)
[4]  Yaşar, S. B., Tokay, F., Köse Baran, E., “Element Fractionation Analysis For Infant Formula by ICP OES”, (3rd PAK-TURK Conference on Chemical Sciences, Bursa, Türkiye, 2012)
[5]  Yaşar, S. B., Köse Baran, E., Tokay, F., “Element Fractionation Analysis For Drink Additives by ICP OES”, (3rd PAK-TURK Conference on Chemical Sciences, Bursa, Türkiye, 2012)
[6]  Tokay, F., Bağdat Yaşar, S., “The Comparison of Direct and Indirect Determination of Iron and Copper by N, N’-bis(4 methoxysalicylidene)-1,2 diamino ethane in Oils”, (11th Euro Fed Lipid Congress, Antalya- Turkey, 2013).
[7]  Tokay, F., Bağdat Yaşar, S., “Spectrophotometric Determination of Nickel and Chromium in Liquid Edible Oils without External Pretreatment”, (11th Euro Fed Lipid Congress, Antalya- Turkey, 2013).
[8]  Tokay, F., Bağdat Yaşar, S., “Determination of Iron and Copper in Liquid Edible Oils by FAAS after Solid Phase Extraction”, (11th Euro Fed Lipid Congress, Antalya- Turkey, 2013).
[9]  Bağdat Yaşar, S., Köse Baran, E., Tokay, F., “Metal Determination and Speciation in Olive Oil”, Kazdağları III. National Symposium, Balıkesir, 2012.
[10]  Tokay, F., Bağdat Yaşar, S., “Extraction of Iron from Olive Oil using [N, N’-Bis(4-Methoxysalicylidene)-1,2-Diaminoethane] and Determination by FAAS” (I. National Chemistry Student Congress, Bursa, 2010)
[11]  Tokay, F., Bağdat Yaşar, S., “Extraction of Copper from Olive Oil with a Water Soluble Schiff Base and Determination by FAAS”, II. National Student Olive Congress, Gemlik-Bursa, 2010.
[12]  Bağdat Yaşar, S., Dağdelen, A., Tokay, F., Özcan, M., “Comparison of Mineral Contents of Olive Oils Obtained from Green and Black Ayvalık Olives”, I. Vegetal Oil Congress, Adana, 2012.
[13]  Dağdelen, A., Bağdat Yaşar, S., Özkan, G., Tokay, F., “The Effect of Location and Crop Year on Mineral Content of Gemlik Olive Oil”, I. Vegetal Oil Congress, Adana, 2012.
[14]  Tokay, F., Bağdat Yaşar, S., “Solid Phase Extraction of Pb and Cd and Determination by Flame Atomic Absorption Spectrometer”, (Chromatography Congress 2013, Bursa, 2013)
[15]  Tokay, F., Bağdat, S., “Preconcentration of Cu(II), Co(II) and Ni(II) with N,N’-bis(4-methoxysalicylidene) ethylenediamine modified silica gel and determination by FAAS”, XIV. National Spectroscopy Congress, Elazığ, 2015)
[16]  Tokay, F., Köse Baran, E., Bağdat, S., “Element Fractionation Analysis in Milk Based Foodstuff”, XIV. National Spectroscopy Congress, Elazığ, 2015.