Spectrophotometric Determination of Nitrite in Water Samples with 4 1 Methyl 1 Mesitylcyclobutane 3 yl 2 Aminothiazole       
Yazarlar (3)
Habibe Özmen
Fırat Üniversitesi, Türkiye
Prof. Dr. Fatih POLAT Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Alaaddin Çukurovalı
Fırat Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Analytical Letters
Dergi ISSN 0003-2719 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 02-2007
Cilt No 39
Sayı 4
Sayfalar 823 / 833
DOI Numarası 10.1080/00032710600611590
Makale Linki http://www.tandfonline.com/doi/abs/10.1080/00032710600611590
Özet
A simple, sensitive, and specific spectrophotometric method for the measurement of nitrite in water has been developed and optimum reaction conditions along with other analytical parameters have been evaluated. The azo dye, 4-(1-methyl-1-mesitylcylobutane-3-yl)-2-(p-N,N-dimethylazobenzene)-1,3- thiazole was synthesized with the reaction of 4-(1-methyl-1-mesitylcylobutane-3- yl)-2-aminothiazole and N,N-dimethyl aniline in acidic medium. Obtained azo dye has been characterized by infrared (IR), 1H nuclear magnetic resonance (NMR), and microanalysis methods. The dye shows an absorption maximum at 482 nm. The method is optimized for acid concentration, pH, amount of reagents required, time, and interfering species. All the determinations were carried out at this wavelength throughout the work. At an analytical wavelength of 482 nm, Beer's law is obeyed over the concentration range 0.05 to 2.00 μg nitrite per mL analyte. The molar absorptivity, Sandell's sensitivity, and relative standard deviation are 2.03 × 104 L mol-1 cm-1 ± 251.3 (95%), 2.28 × 10-3 μg cm -2, and 2.74% (n = 10), respectively. The detection limit of the method is 0.012 μg ml-1 of nitrite ion. The method was succesfully applied to the determination of nitrite in tap water and lake water. Copyright © Taylor & Francis Group, LLC.
Anahtar Kelimeler
Aminothiazole | Azo dye | Nitrite | Spectrophotometric method | Water