کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1234240 968824 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
UV–vis, IR and 1H NMR spectroscopic studies and characterization of ionic-pair crystal violet–oxytetracycline
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
UV–vis, IR and 1H NMR spectroscopic studies and characterization of ionic-pair crystal violet–oxytetracycline
چکیده انگلیسی

The present study shows the formation and characterization of the ionic-pair between the antibiotic oxytetracycline and the dye crystal violet in ammonia solution pH 9.0 ± 0.2 extracted into chloroform. The characterization was demonstrated using UV–vis spectrophotometry, 1H NMR, measurement of relaxation times T1 and IR spectroscopy, using a comparison between the signals of individual pure compounds with the signals with the mixture CV–OTC in different alkaline media. The formation of ionic-pair was also corroborated by new signals and chemical shifts. (2D) NMR spectroscopy experiments show that the interaction is electrostatic.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 75, Issue 1, January 2010, Pages 437–443
نویسندگان
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