کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1241987 1495803 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel strategy for online monitoring of the degradation kinetics of propantheline bromide via a calixarene-based ion-selective electrode
ترجمه فارسی عنوان
استراتژی نوشتاری برای نظارت آنلاین بر روی سینتیک تخریب پروپرانلین برومید از طریق یک الکترود یون انتخابی مبتنی بر کالیسیارن
کلمات کلیدی
برومید پروپتانلین، نظارت بر روی خط، سینتیک تخریب، کالیکسارین، الکترود انتخابی یونی، انرژی فعال سازی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Novel use of ISEs for online monitoring of the degradation kinetics of hydrolysable drug.
• Real-time observation for continuous profile of the hydrolysis behaviour of PB under various pH and temperature conditions.
• Increased accuracy in rate constants estimation superior to the off-line chromatographic and spectrometric techniques.
• The prepared sensor shows high selectivity, minimal potential drift and short response time.

Propantheline bromide (PB) is a hydrolysable anti-cholinergic drug. A novel strategy for the online monitoring of PB degradation kinetics catalysed by hydroxyl ions is presented. This is achieved by the incorporation of an on-site PB-selective electrode constructed using as an ionophore. This sensor was used to track the hydrolysis of PB by continuous measurement of the decrease in the produced emf over time. The use of this new technique provides real-time observation and yields a continuous profile of the hydrolysis behaviour of PB under various pH conditions as well as the temperature dependency of each reaction. Moreover, a great advantage of this proposed on-line system is its higher accuracy for rate constant estimation relative to other off-line methods. This kinetic data analysis permitted the determination of the hydrolysis activation energy and prediction of the drug shelf life. The estimated activation energy from Arrhenius plot was 20.77 kcal mol−1.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 132, 15 January 2015, Pages 52–58
نویسندگان
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