title: A Simple Spectrofluorimetric Method for Iron Determination with a Chalcone-Based Schiff Base.
abstract: A chalcone-based Schiff base (5), capable of detecting iron (III) in partially aqueous media, has been designed, then synthesized by the condensation of 3-formyl-2-hydroxyquinoline and acetophenone. To determine iron (III) ion, a simple spectrofluorimetric method was developed by using the synthesized Schiff base. The developed method was validated by analyzing the certified reference material (CRM-SA-C Sandy Soil C). During the process of the determination of iron in food samples, satisfactory accuracy was obtained for spinach and rocket. Nitric acid and hydrogen fluoride were used for the digestion of the certified reference material whereas only nitric acid was used for food samples, in a closed microwave system. Measurements were carried out by using the modified standard addition method. The standard addition graph was linear until 5.0 mg/L. in determination of iron (III). Detection and quantification limits were 0.06 and 0.20 mg/L., respectively. The presented method is simple, time-saving, cost-effective and suitable for determination of iron content of soil and foods.
authors.affiliation: Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Nurhayat
authors.initials: N
authors.lastname: Özbek
authors.affiliation: Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Hakan
authors.initials: H
authors.lastname: Alp
authors.affiliation: Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Gonca
authors.initials: G
authors.lastname: Çelik
authors.affiliation: Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Tuğba
authors.initials: T
authors.lastname: Ak
authors.affiliation: Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Osman Can
authors.initials: OC
authors.lastname: Çağılcı
authors.affiliation: Faculty of Pharmaceutical Sciences, Pharmaceutical Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Nurettin
authors.initials: N
authors.lastname: Yaylı
authors.affiliation: Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey. uocak@ktu.edu.tr.
authors.forename: Ümmühan
authors.initials: Ü
authors.lastname: Ocak
authors.affiliation: Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Miraç
authors.initials: M
authors.lastname: Ocak
keywords: Chalcone; Food; Iron determination; Schiff base; Soil; Spectrofluorimetric analysis