کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7610505 1493497 2016 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kinetic simulation of complex decomposition as a tool for the ion chromatographic determination of elemental speciation of less inert metal ions
ترجمه فارسی عنوان
شبیه سازی جنبشی تجزیه پیچیده به عنوان یک ابزار برای تعیین کروماتوگرافی یونی نمونه های عنصری یونهای فلزی کمتر
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Species decomposition is an often occurring artefact during the chromatographic determination of elemental speciation. The decomposition follows a simple path to lower coordinated compounds. Therefore a simulation is developed for those decomposition reactions. The simulation separates the isochronal processes of the separation itself and the ongoing reaction and delivers thermodynamic and kinetic information about the species present in the original sample. This shifts the boundaries of separation based elemental speciation to less inert metal ions which are typically not analyzable by this approach. The less inert gallium monooxalato complex [GaOx]+ is used as example for testing the simulation software as this complex decomposes only to Ga3+ and both species are retained on cation exchange columns. We extracted thermodynamic and kinetic information from flow rate experiments by the analysis of the peak areas in the chromatogram. The results show that some of our assumptions such as the irreversibility under the applied chromatographic conditions are not ultimately true, but good accordance of simulation and measured data was achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1429, 15 January 2016, Pages 189-197
نویسندگان
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