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SEMA DEMİRCİ ÇEKİÇ
SEMA DEMİRCİ ÇEKİÇ
İstanbul Üniversitesi-Cerrahpasa
Verified email at istanbul.edu.tr
Title
Cited by
Cited by
Year
Use of an o-aminobenzoic acid-functionalized XAD-4 copolymer resin for the separation and preconcentration of heavy metal(II) ions
SD Çekiç, H Filik, R Apak
Analytica Chimica Acta 505 (1), 15-24, 2004
1792004
Biomarkers of oxidative stress and antioxidant defense
S Demirci-Cekic, G Özkan, AN Avan, S Uzunboy, E Çapanoğlu, R Apak
Journal of pharmaceutical and biomedical analysis 209, 114477, 2022
1582022
Comparative evaluation of antioxidant capacities of thiol-based antioxidants measured by different in vitro methods
N Güngör, M Özyürek, K Güçlü, SD Çekiç, R Apak
Talanta 83 (5), 1650-1658, 2011
862011
Methods to evaluate the scavenging activity of antioxidants toward reactive oxygen and nitrogen species (IUPAC Technical Report)
R Apak, A Calokerinos, S Gorinstein, MA Segundo, DB Hibbert, İ Gülçin, ...
Pure and Applied Chemistry 94 (1), 87-144, 2022
762022
Modified cupric reducing antioxidant capacity (CUPRAC) assay for measuring the antioxidant capacities of thiol-containing proteins in admixture with polyphenols
SD Çekiç, KS Başkan, E Tütem, R Apak
Talanta 79 (2), 344-351, 2009
662009
Correlation of total antioxidant capacity with reactive oxygen species (ROS) consumption measured by oxidative conversion
S Demirci Çekiç, A Cetinkaya, AN Avan, R Apak
Journal of agricultural and food chemistry 61 (22), 5260-5270, 2013
522013
Spectrophotometric determination of paracetamol in urine with tetrahydroxycalix [4] arene as a coupling reagent and preconcentration with Triton X-114 using cloud point extraction
H Filik, İ Şener, SD Cekiç, E Kiliç, R Apak
Chemical and Pharmaceutical Bulletin 54 (6), 891-896, 2006
512006
Spectrophotometric total protein assay with copper (II)–neocuproine reagent in alkaline medium
K Sözgen, SD Cekic, E Tütem, R Apak
Talanta 68 (5), 1601-1609, 2006
492006
Simultaneous Spectrophotometric Determination of Paracetamol and p-Aminophenol in Pharmaceutical Products with Tiron Using Dissolved Oxygen as Oxidant
SD Cekic, H Filik, R Apak
Journal of Analytical Chemistry 60, 1019-1023, 2005
492005
Protein–incorporated serum total antioxidant capacity measurement by a modified CUPRAC (CUPRIC reducing antioxidant capacity) method
SD Çekiç, N Kara, E Tütem, KS Başkan, R Apak
Analytical letters 45 (7), 754-763, 2012
482012
Novel spectroscopic and electrochemical sensors and nanoprobes for the characterization of food and biological antioxidants
R Apak, S Demirci Çekiç, A Üzer, SE Çelik, M Bener, B Bekdeşer, Z Can, ...
Sensors 18 (1), 186, 2018
322018
HPLC detection and antioxidant capacity determination of brown, red and green algal pigments in seaweed extracts
S Yalçın, Ö Karakaş, EŞ Okudan, KS Başkan, SD Çekiç, R Apak
Journal of Chromatographic Science 59 (4), 325-337, 2021
272021
Determination of total antioxidant capacity of milk by CUPRAC and ABTS methods with separate characterisation of milk protein fractions
SD Çekiç, A Demir, KS Başkan, E Tütem, R Apak
Journal of Dairy Research 82 (2), 177-184, 2015
272015
A colourimetric sensor for the simultaneous determination of oxidative status and antioxidant activity on the same membrane: N, N-Dimethyl-p-phenylene diamine (DMPD) on Nafion
SD Çekiç, AN Avan, S Uzunboy, R Apak
Analytica Chimica Acta 865, 60-70, 2015
262015
Spectrophotometric determination of phenolic antioxidants in the presence of thiols and proteins
AN Avan, S Demirci Çekiç, S Uzunboy, R Apak
International Journal of Molecular Sciences 17 (8), 1325, 2016
232016
Selective determination of catechin among phenolic antioxidants with the use of a novel optical fiber reflectance sensor based on indophenol dye formation on nano-sized TiO2
R Apak, S Demirci Çekiç, A Cetinkaya, H Filik, M Hayvalı, E Kılıç
Journal of agricultural and food chemistry 60 (11), 2769-2777, 2012
232012
Colorimetric sensors and nanoprobes for characterizing antioxidant and energetic substances
R Apak, SD Çekiç, A Üzer, E Çapanoğlu, SE Çelik, M Bener, Z Can, ...
Analytical Methods 12 (44), 5266-5321, 2020
172020
Cloud point extraction of pesticide residues
H Filik, SD Çekiç
Pesticides in the modern world-trends in pesticides analysis, 247-280, 2011
172011
Antioxidant activity and capacity measurement
E Capanoglu, S Kamiloglu, S Demirci Cekic, K Sozgen Baskan, AN Avan, ...
Plant antioxidants and health, 1-66, 2020
162020
Use of modified CUPRAC and dinitrophenylhydrazine colorimetric methods for simultaneous measurement of oxidative protein damage and antioxidant defense against oxidation
G Bayarsaikhan, AN Avan, SD Çekiç, R Apak
Talanta 204, 613-625, 2019
142019
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