Search filters

List of works by Reşat Apak

4-Aminothiophenol functionalized gold nanoparticle-based colorimetric sensor for the determination of nitramine energetic materials.

scientific article

A Fast Liquid Chromatography Tandem Mass Spectrometric Analysis of PETN (Pentaerythritol Tetranitrate), RDX (3,5-Trinitro-1,3,5-triazacyclohexane) and HMX (Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine) in Soil, Utilizing a Simple Ultrasonic-Assi

scientific article published on 01 January 2016

A colorimetric probe based on 4-mercaptophenol and thioglycolic acid-functionalized gold nanoparticles for determination of phytic acid and Fe(III) ions

scientific article published on 30 September 2020

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.

scientific article published on 30 January 2015

A novel differential pulse voltammetric (DPV) method for measuring the antioxidant capacity of polyphenols-reducing cupric neocuproine complex

scientific article published on 14 July 2014

A novel fiber optic spectrophotometric determination of nitrite using Safranin O and cloud point extraction.

scientific article published on 20 July 2011

Active manganese oxide: a novel adsorbent for treatment of wastewater containing azo dye.

scientific article published in January 2009

Antioxidant Activity/Capacity Measurement. 1. Classification, Physicochemical Principles, Mechanisms, and Electron Transfer (ET)-Based Assays

scientific article published on 04 January 2016

Antioxidant Activity/Capacity Measurement. 2. Hydrogen Atom Transfer (HAT)-Based, Mixed-Mode (Electron Transfer (ET)/HAT), and Lipid Peroxidation Assays.

scientific article

Antioxidant Activity/Capacity Measurement. 3. Reactive Oxygen and Nitrogen Species (ROS/RNS) Scavenging Assays, Oxidative Stress Biomarkers, and Chromatographic/Chemometric Assays.

scientific article published on 21 December 2015

Antioxidant protective effect of flavonoids on linoleic acid peroxidation induced by copper(II)/ascorbic acid system

scientific article published on 09 September 2011

Antioxidant/antiradical properties of microwave-assisted extracts of three wild edible mushrooms

scientific article published on 22 February 2014

Antioxidant/prooxidant effects of α-tocopherol, quercetin and isorhamnetin on linoleic acid peroxidation induced by Cu(II) and H2O2.

scientific article

Biogeochemical cycle of arsenic and calculating the enrichment factor by using Li element

scientific article published on 09 April 2010

CUPRAC colorimetric and electroanalytical methods determining antioxidant activity based on prevention of oxidative DNA damage.

scientific article published on 2 November 2016

Characterization and lead(II), cadmium(II), nickel(II) biosorption of dried marine brown macro algae Cystoseira barbata.

scientific article published on 8 August 2012

Colorimetric Determination of (Aminoalkyl)indole-containing Synthetic Cannabimimetics

scientific article published on 07 September 2018

Colorimetric sensors and nanoprobes for characterizing antioxidant and energetic substances

scientific article published on 10 November 2020

Colourimetric solid-phase extraction coupled with fibre optic reflectance spectroscopy for determination of ascorbic acid in pharmaceutical formulations

scientific article published on 21 February 2011

Combined HPLC-CUPRAC (cupric ion reducing antioxidant capacity) assay of parsley, celery leaves, and nettle.

scientific article

Comparative evaluation of antioxidant capacities of thiol-based antioxidants measured by different in vitro methods

scientific article published on 30 November 2010

Comparison of antioxidant capacity and phenolic composition of peel and flesh of some apple varieties.

scientific article published on 6 August 2012

Correlation of total antioxidant capacity with reactive oxygen species (ROS) consumption measured by oxidative conversion

scientific article published on 22 May 2013

Cupric ion reducing antioxidant capacity assay for antioxidants in human serum and for hydroxyl radical scavengers.

scientific article published in January 2010

Cupric ion reducing antioxidant capacity assay for food antioxidants: vitamins, polyphenolics, and flavonoids in food extracts.

scientific article

Current Issues in Antioxidant Measurement

scientific article published on 06 August 2019

Determination of antioxidants by a novel on-line HPLC-cupric reducing antioxidant capacity (CUPRAC) assay with post-column detection.

scientific article published on 16 June 2010

Determination of biothiols by a novel on-line HPLC-DTNB assay with post-column detection

scientific article published on 09 April 2012

Determination of nitroaromatic and nitramine type energetic materials in synthetic and real mixtures by cyclic voltammetry.

scientific article published on 29 June 2013

Determination of peroxide-based explosives with copper(II)-neocuproine assay combined with a molecular spectroscopic sensor.

scientific article published on 7 June 2010

Determination of total antioxidant capacity by a new spectrofluorometric method based on Ce(IV) reduction: Ce(III) fluorescence probe for CERAC assay

scientific article published on 28 May 2011

Determination of total antioxidant capacity by a new spectrophotometric method based on Ce(IV) reducing capacity measurement.

scientific article

Determination of total antioxidant capacity of Cynara Scolymus L. (globe artichoke) by using novel nanoparticle-based ferricyanide/Prussian blue assay

scientific article published on 24 March 2020

Determination of total antioxidant capacity of humic acids using CUPRAC, Folin-Ciocalteu, noble metal nanoparticle- and solid-liquid extraction-based methods.

scientific article published on 3 March 2016

Determination of total antioxidant capacity of milk by CUPRAC and ABTS methods with separate characterisation of milk protein fractions

scientific article published on 03 March 2015

Determination of triacetone triperoxide with a N,N-dimethyl-p-phenylenediamine sensor on nafion using Fe3O4 magnetic nanoparticles.

scientific article published on 10 September 2015

Development of a fluorescent probe for measurement of peroxyl radical scavenging activity in biological samples

scientific article published on 17 February 2014

Development of a new catalase activity assay for biological samples using optical CUPRAC sensor.

scientific article published on 14 May 2014

Development of a silver nanoparticle-based method for the antioxidant capacity measurement of polyphenols

scientific article published on 27 August 2012

Development of an optical fibre reflectance sensor for p-aminophenol detection based on immobilised bis-8-hydroxyquinoline.

scientific article

Diaminocyclohexane-Functionalized/Thioglycolic acid-Modified Gold Nanoparticles-based Colorimetric Sensing of TNT and Tetryl

scientific article published on 23 October 2018

Differences in responsivity of original cupric reducing antioxidant capacity and cupric-bathocuproine sulfonate assays to antioxidant compounds

scientific article published on 26 January 2012

Direct measurement of total antioxidant capacity of cereals: QUENCHER-CUPRAC method

scientific article published on 05 March 2013

Electrochemical Determination of Food Preservative Nitrite with Gold Nanoparticles/p-Aminothiophenol-Modified Gold Electrode.

scientific article published on 2 August 2016

Electrochemical Determination of TNT, DNT, RDX, and HMX with Gold Nanoparticles/Poly(Carbazole-Aniline) Film-Modified Glassy Carbon Sensor Electrodes Imprinted for Molecular Recognition of Nitroaromatics and Nitramines

scientific article published on 31 May 2018

Electrochemical sensor for nitroaromatic type energetic materials using gold nanoparticles/poly(o-phenylenediamine-aniline) film modified glassy carbon electrode

scientific article published on 09 March 2015

Folin-Ciocalteu spectrophotometric assay of ascorbic acid in pharmaceutical tablets and orange juice with pH adjustment and pre-extraction of lanthanum(III)–flavonoid complexes

scientific article published on 01 September 2014

Heavy metal concentrations in water, suspended matter, and sediment from Gökova Bay, Turkey

scientific article published on 30 June 2009

Identification and Determination of Phenolics in Lamiaceae Species by UPLC-DAD-ESI-MS/MS.

scientific article published on 24 November 2016

Identification and anti-oxidant capacity determination of phenolics and their glycosides in elderflower by on-line HPLC-CUPRAC method.

scientific article published on 10 January 2014

Kinetic studies on UV-photodegradation of some chlorophenols using TiO2 catalyst.

scientific article

Measurement of xanthine oxidase inhibition activity of phenolics and flavonoids with a modified cupric reducing antioxidant capacity (CUPRAC) method.

scientific article published on 22 January 2009

Modeling of Copper(II), Cadmium(II), and Lead(II) Adsorption on Red Mud from Metal-EDTA Mixture Solutions.

scientific article published in August 2000

Modeling of copper(II) and lead(II) adsorption on kaolinite-based clay minerals individually and in the presence of humic acid.

scientific article published on 13 September 2005

Modeling the kinetics of UV/hydrogen peroxide oxidation of some mono-, di-, and trichlorophenols

scientific article published on 01 October 2000

Modified Folin-Ciocalteu antioxidant capacity assay for measuring lipophilic antioxidants.

scientific article published on 13 May 2013

Modified Radical Scavenging and Antioxidant Activity Measurement of β-Carotene with β-Cyclodextrins Complexation in Aqueous Medium

scientific article published in January 2017

Modified cupric reducing antioxidant capacity (CUPRAC) assay for measuring the antioxidant capacities of thiol-containing proteins in admixture with polyphenols.

scientific article published on 5 April 2009

Novel Colorimetric Assay of 2,3-Dihydroxybenzoate among Other Isomers as a Selective Indicator of Hydroxyl Radical Damage and Related Antioxidant Activity

Novel Protein-Based Solid-Biosensor for Determining Pro-oxidant Activity of Phenolic Compounds.

scientific article published on 21 June 2017

Novel Spectroscopic and Electrochemical Sensors and Nanoprobes for the Characterization of Food and Biological Antioxidants

scientific article published on 11 January 2018

Novel hydroxyl radical scavenging antioxidant activity assay for water-soluble antioxidants using a modified CUPRAC method.

scientific article published on 15 May 2006

Novel oxime based flavanone, naringin-oxime: synthesis, characterization and screening for antioxidant activity

scientific article published on 6 February 2014

Novel pro-oxidant activity assay for polyphenols, vitamins C and E using a modified CUPRAC method

scientific article

Novel spectroscopic sensor for the hydroxyl radical scavenging activity measurement of biological samples.

scientific article published on 21 July 2012

Optimization of microwave-assisted extraction of polyphenols from herbal teas and evaluation of their in vitro hypochlorous acid scavenging activity.

scientific article published on 11 November 2014

Photocatalytic decomposition of 4-chlorophenol over oxide catalysts

scientific article published on 01 February 1999

Polar paradox revisited: analogous pairs of hydrophilic and lipophilic antioxidants in linoleic acid emulsion containing Cu(II)

scientific article published on 20 March 2013

Preparation, characterization and usage of molecularly imprinted polymer for the isolation of quercetin from hydrolyzed nettle extract

scientific article published on 26 February 2016

Protection of ascorbic acid from copper(II)-catalyzed oxidative degradation in the presence of flavonoids: quercetin, catechin and morin

scientific article published on 10 March 2011

Protein-Protected Gold Nanocluster-Based Biosensor for Determining the Prooxidant Activity of Natural Antioxidant Compounds

scientific article published on 31 January 2019

Rapana venosa consumption improves the lipid profiles and antioxidant capacities in serum of rats fed an atherogenic diet

scientific article published on 15 May 2015

Rapid detection of nitroaromatic and nitramine explosives on chromatographic paper and their reflectometric sensing on PVC tablets.

scientific article published on 29 July 2011

Release and degradation of anthocyanins and phenolics from blueberry pomace during thermal acid hydrolysis and dry heating.

scientific article published on 28 June 2013

Resorcinol as a spectrofluorometric probe for the hypochlorous acid scavenging activity assay of biological samples

scientific article published on 22 October 2012

Screening Method for Argan Oil Adulteration with Vegetable Oils: An Online HPLC Assay with Postcolumn Detection Utilizing Chemometric Multidata Analysis

scientific article published on 15 July 2019

Selective cloud point extraction and graphite furnace atomic absorption spectrometric determination of molybdenum (VI) ion in seawater samples.

scientific article published on 14 April 2009

Selective colorimetric determination of TNT partitioned between an alkaline solution and a strongly basic Dowex 1-X8 anion exchanger.

scientific article published on 6 June 2007

Selective optical sensing of biothiols with Ellman's reagent: 5,5'-Dithio-bis(2-nitrobenzoic acid)-modified gold nanoparticles

scientific article published on 25 July 2013

Separation and preconcentration of iron(II) and iron(III) from natural water on a melamine-formaldehyde resin

scientific article published on 01 May 1997

Silver Nanoparticle Formation-Based Colorimetric Determination of Reducing Sugars in Food Extracts via Tollens' Reagent

scientific article published on 25 April 2019

Simultaneous determination of chlorophyll a and chlorophyll b by derivative spectrophotometry.

scientific article

Simultaneous total antioxidant capacity assay of lipophilic and hydrophilic antioxidants in the same acetone-water solution containing 2% methyl-beta-cyclodextrin using the cupric reducing antioxidant capacity (CUPRAC) method.

scientific article

Solid-Phase Extraction Spectrophotometric Determination of Total Antioxidant Capacity in Antioxidant-poor Samples by Using the Ferric-Ferrozine Method.

scientific article published in January 2017

Solvent effects on the antioxidant capacity of lipophilic and hydrophilic antioxidants measured by CUPRAC, ABTS/persulphate and FRAP methods.

scientific article published on 13 February 2010

Spectrophotometric Determination of Phenolic Antioxidants in the Presence of Thiols and Proteins.

scientific article published on 12 August 2016

Spectrophotometric and chromatographic assessment of contributions of carotenoids and chlorophylls to the total antioxidant capacities of plant foods

scientific article published on 13 November 2013

Spectrophotometric and chromatographic determination of insensitive energetic materials: HNS and NTO, in the presence of sensitive nitro-explosives

scientific article published on 04 January 2012

Spectrophotometric determination of ascorbic acid by the modified CUPRAC method with extractive separation of flavonoids-La(III) complexes.

scientific article published on 6 February 2007

Spectrophotometric determination of ascorbic acid using copper(II)-neocuproine reagent in beverages and pharmaceuticals.

scientific article published in March 2005

Spectrophotometric determination of cyclotrimethylenetrinitramine (RDX) in explosive mixtures and residues with the Berthelot reaction.

scientific article published on 15 February 2008

Spectrophotometric determination of gallium(III) with rutin

scientific article published on 01 August 2002

Spectrophotometric determination of vitamin E (alpha-tocopherol) using copper(II)-neocuproine reagent

scientific article published on 01 February 1997

Spectrophotometric total protein assay with copper(II)-neocuproine reagent in alkaline medium

scientific article published on 19 September 2005

Spectrophotometric total reducing sugars assay based on cupric reduction

scientific article published on 25 September 2015

Spectroscopic study and antioxidant properties of the inclusion complexes of rosmarinic acid with natural and derivative cyclodextrins ⬇️

scientific article published on February 13, 2011

Synthesis and antioxidant activities of transition metal complexes based 3-hydroxysalicylaldehyde-S-methylthiosemicarbazone

scientific article

Synthesis, characterization and antioxidant capacity of naringenin-oxime

scientific article published on 06 October 2011

The chemical oceanographic consequences of environmental restoration projects in the Golden Horn estuary (Marmara Sea, Turkey)

scientific article published on 08 April 2009

The cupric ion reducing antioxidant capacity and polyphenolic content of some herbal teas.

scientific article published in August 2006

The interaction of antitumor-active anthraquinones with biologically important redox couples: I. Spectrophotometric investigation of the interaction of carminic acid and mitoxantrone with the iron (II, III) and copper (I, II) redox couples

scientific article published on 01 February 1996

The uranyl-chloro-substituted benzoic acid-rhodamine b-benzene extraction system

scientific article published on 01 October 1989

Total antioxidant capacity assay of human serum using copper(II)-neocuproine as chromogenic oxidant: the CUPRAC method.

scientific article published in September 2005

tert-Butylhydroquinone as a spectroscopic probe for the superoxide radical scavenging activity assay of biological samples

scientific article published on 17 June 2011

Paulina is supported by:

About Paulina

Help