کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1208498 | 965307 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selection of comparison criteria and experimental conditions to evaluate the kinetic performance of monolithic and packed-bed columns
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Selection of comparison criteria and experimental conditions to evaluate the kinetic performance of monolithic and packed-bed columns Selection of comparison criteria and experimental conditions to evaluate the kinetic performance of monolithic and packed-bed columns](/preview/png/1208498.png)
چکیده انگلیسی
The present study concerns the problem of finding appropriate experimental conditions and comparison criteria to assess the kinetic performance of LC supports with different sizes or morphologies. A general procedure, based on evaluating each support for its own optimal mobile-phase composition, is proposed. The practical elaboration of the procedure is illustrated using the specific case of a capillary LC separation of a series of polycyclic aromatic test compounds employing silica-monolith capillary columns and capillary columns packed with 6-μm porous particles. To compare the systems for their ability to yield the fastest critical-pair separation, plate-height measurements are transformed into an effective plate number kinetic plot, i.e., a plot of the extrapolated retention time divided by the square of the extrapolated effective plate number (tR/Neff2) versus Neff. This type of data representation provides a direct and universal basis to compare the kinetic performance of different LC supports and it corrects for differences in retention strength arising from different phase ratios.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1130, Issue 1, 13 October 2006, Pages 108-114
Journal: Journal of Chromatography A - Volume 1130, Issue 1, 13 October 2006, Pages 108-114
نویسندگان
Sebastiaan Eeltink, Piotr Gzil, Wim Th. Kok, Peter J. Schoenmakers, Gert Desmet,