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DOI: 10.1002/elps.202000001
The cover picture shows a radially elongated pillar array column fabricated in a glass substrate wherein capillary electrochromatography has been performed to separate small molecules (coumarins). By increasing the aspect ratio from 1 (cylinders) to 4 (rectangles), it could be demonstrated that the attainable performance limit (unretained conditions) has been shifted from...
In the present study, cylindrical and laterally elongated pillar array columns were investigated for use in capillary electrochromatography. Minimal theoretical plate heights of H = 1.90 and 1.46 μm (in absence of sidewall effect) were obtained for coumarin C440 under unretained conditions for cylindrical and rectangular (laterally elongated, aspect ratio 4) pillar array columns, respectively. By...
The stereoselective analysis and separation of racemic drugs play an important role in pharmaceutical industry to eliminate the unwanted isomer and find the right therapeutic control for the patient. Present study suggests a maltodextrin‐modified capillary electrophoresis method for a single‐run chiral separation of two closely similar opiate pain relief drugs: tramadol (TRA) and methadone (MET)....
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