Browsing by Author "Temel N.K."
Now showing items 1-6 of 6
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Catalytic spectrophotometric determination of trace Mo(VI) in milk-based beverages in the presence of bromophenol blue and H2O2 using SDS as a sensitizer
Temel N.K.; Gürkan R. (2016)A simple and low-cost catalytic spectrophotometric method using sodium dodecyl sulfate (SDS) as a sensitivity-improving surfactant to detect low levels of Mo(vi) in beverage matrices was developed. The method is based on ... -
Combination of ultrasound-assisted cloud-point extraction with spectrophotometry for extraction, preconcentration, and determination of low levels of free formaldehyde from cosmetic products
Temel N.K.; Gürkan R. (AOAC International, 2018)In the present study, a new preconcentration method was developed to quantify the free formaldehyde (FA) in hair cosmetics by combining ultrasound-assisted cloud-point extraction with spectrophotometry. The method is based ... -
Extraction, Preconcentration, and Quantification of Low Levels of Free Formaldehyde from Some Beverage Matrices by Combination of Ultrasound-Assisted-Cloud Point Extraction with Spectrophotometry
Temel N.K.; Gürkan R. (Springer New York LLC, 2017)In the present study, due to use of formaldehyde (FA) as a food additive as well as its endogenous and natural occurrence in aquatic products, a new preconcentration method for the quantification of free formaldehyde (FA) ... -
A micellar sensitized kinetic method for quantification of low levels of bisphenol A in foodstuffs by spectrophotometry
Temel N.K.; Gürkan R. (Royal Society of Chemistry, 2017)In the current study, because of its potential to leach out into foodstuffs as a result of food contact uses, a new kinetic method for the monitoring and determination of bisphenol A in foods by spectrophotometry for a ... -
Preconcentration and determination of trace nickel and cobalt in milk-based samples by ultrasound-assisted cloud point extraction coupled with flame atomic absorption spectrometry
Temel N.K.; Sertakan K.; Gürkan R. (Humana Press Inc., 2018)In this study, ultrasound-assisted cloud point extraction (UA-CPE) method was developed for the determination of Ni(II) and Co(II) in milk-based products. After extraction and preconcentration, the Ni(II) and Co(II) contents ... -
Preconcentration and determination of trace vanadium(V) in beverages by combination of ultrasound assisted-cloud point extraction with spectrophotometry
Temel N.K.; Gürkan R. (Slovensko Kemijsko Drustvo, 2018)A novel ultrasound assisted-cloud point extraction method was developed for preconcentration and determination of V(V) in beverage samples. After complexation by pyrogallol in presence of safranin T at pH 6.0, V(V) ions ...