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

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

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...

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Bibliographic Details
Published in:International Journal of Analytical Chemistry Vol. 2014; no. 2014; pp. 34 - 39
Main Authors: Shamsa, Fazel, Ghanbari, Hutan, Souri, Effat, Amini, Mohsen, Barazandeh Tehrani, Maliheh
Format: Journal Article
Language:English
Published: Cairo, Egypt Hindawi Limiteds 2014
Hindawi Puplishing Corporation
Hindawi Publishing Corporation
John Wiley & Sons, Inc
Hindawi Limited
Subjects:
Analytical chemistry
Azo compounds
Chemical properties
Chemical synthesis
Colleges & universities
Copper
Equipment and supplies
Ethanol
Identification and classification
Methods
Pharmaceuticals
Production processes
Spectrophotometry
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Summary: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 µg/mL with r2=0.992. The limit of detection and limit of quantification were 0.33 and 1.10 µg/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).
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Academic Editor: Teizo Kitagawa
ISSN:1687-8760
1687-8779
DOI:10.1155/2014/260179