کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1208089 965290 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Integration of various stacking processes in carrier ampholyte-based capillary electrophoresis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Integration of various stacking processes in carrier ampholyte-based capillary electrophoresis
چکیده انگلیسی

Field-enhanced sample stacking, field-enhanced sample injection as well as electrokinetic supercharging have been successfully integrated in carrier ampholyte-based capillary electrophoresis. Through the analysis of different test sample mixtures, it has been shown that the carrier ampholyte-based background electrolytes, in spite of their very low conductivity, allow efficient online preconcentration of analytes by field-amplified techniques. Sensitivity enhancement factors of the same magnitude as those usually encountered with classical conductive background electrolytes have been obtained in such carrier ampholyte-based buffers. Depending on the online preconcentration method that has been integrated, sensitivity enhancement factors between 50 and several thousands have been reached.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1182, Issue 2, 29 February 2008, Pages 226–232
نویسندگان
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