Synthesis of 6-(2-Methoxynaphthyl)-2, 3-dihydro-1, 2, 4-triazine-3-thione as a New Reagent for Spectrophotometric Determination of Copper. (3rd February 2014)

• Record Type: Journal Article
• Authors: Barazandeh Tehrani, Maliheh; Ghanbari, Hutan; Souri, Effat; Shamsa, Fazel; Amini, Mohsen
• Other Names: Kitagawa Teizo Academic Editor.
• Is Part Of: International journal of analytical chemistry. Volume 2014(2014)
• Publication Date: 2014-02-03
• Subjects: Chemistry, Analytic -- Periodicals; 543.05
• DOI: 10.1155/2014/260179
• Languages: English
• ISSNs: 1687-8760

Abstract

Abstract : A simple, sensitive, accurate, and green spectrophotometric method for the determination of Cu(II) using newly synthesized reagent, 6-(2-methoxynaphthyl)-2, 3-dihydro-1, 2, 4-triazine-3-thione (MNDTT), has been developed. MNDTT was synthesized based on the acylation of methoxy naphthalene and reaction of the product with amyl nitrite, which upon reaction with thiosemicarbazide yielded 6-(2-meyhoxynaphthyl)-2, 3-dihydro-1, 2, 4-triazine-3-thione. MNDTT produces a dark red complex with copper in methanol according to the 1 : 2 stoichiometry. Beer's law was obeyed over the concentration range of 2.5–20 µ g/mL withr 2 = 0.992 . The limit of detection and limit of quantification were 0.33 and 1.10 µ g/mL, respectively. Within-day and between-day precision values were less than 3.68%. Finally, the method has been applied to a dental alloy (110-plus) successfully and the results were compared with atomic absorption method. The results showed that there was no significant difference between the two methods (P > 0.05 ).