title: Metal Complexation Properties of Schiff Bases Containing 1,3,5-Triazine Derived from 2-Hydroxy-1-Naphthaldehyde in Solution. A Simple Spectrofluorimetric Method to Determine Mercury (II).
abstract: Four new Schiff base ligands carrying naphthalene groups were prepared from the reaction of 2,4-diamino-6-methyl-1,3,5-triazine and 2,4-diamino-6-undecyl-1,3,5-triazine with 2-hydroxy-1-naphthaldehyde. The influence of a series of metal ions including Cu2+, Co2+, Hg2+, Al3+, Cr3+, Fe3+, Pb2+, Ni2+, Cd2+, Zn2+, Mn2+, Ag+, Ba2+, Ca2+and Mg2+on the spectroscopic properties of the ligands was investigated by means of absorption and emission spectrometry. The results of spectrophotometric and spectrofluorimetric titrations disclosed the complexation stoichiometry and complex stability constant of the ligands with metal ions. A simple spectrofluorimetric method was developed using the Schiff base derived from 2,4-diamino-6-undecyl-1,3,5-triazine to determine Hg2+ion. No cleanup or enrichment of the tap water sample was required. A modified standard addition method was used to eliminate matrix effect. The standard addition graph was linear between 0.2 and 2.6 mg/L in determination of Hg2+. Detection and quantification limits were 0.08 and 0.23 mg/L, respectively. The simple and cost-effective method can be applied to water samples.
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Miraç
authors.initials: M
authors.lastname: Ocak
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Tuğba
authors.initials: T
authors.lastname: Ak
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Ayşe
authors.initials: A
authors.lastname: Aktaş
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Nurhayat
authors.initials: N
authors.lastname: Özbek
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Osman Can
authors.initials: OC
authors.lastname: Çağılcı
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Abidin
authors.initials: A
authors.lastname: Gümrükçüoğlu
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Halit
authors.initials: H
authors.lastname: Kantekin
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey. ummuhanocak@yahoo.com.
authors.forename: Ümmühan
authors.initials: Ü
authors.lastname: Ocak
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080, Trabzon, Turkey.
authors.forename: Hakan
authors.initials: H
authors.lastname: Alp
keywords: 1,3,5-Triazine; 2-hydroxy-1-naphthaldehyde; Fluorescence spectroscopy; Mercury determination; Schiff base