Monolithic and core-shell particles stationary phase morphologies in protein analysis; peptide mapping of erythropoietin hormone and determination of carbetocin.

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ID: 103110
2020
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Abstract
Chromatographic application of two recent HPLC stationary phases for protein analysis was demonstrated. These two stationary phases are namely monolithic rods and core-shell particles. Monolithic rods have higher permeability and larger porous structure allowing faster elution, while smaller core-shell particles have narrower particle size distribution and better packing allowing larger number of resolved peptides. Peptide mapping of erythropoietin hormone, which is used in the treatment of symptomatic anaemia associated with chronic renal failure in adult and pediatric patients, was carried out on monolithic column and core-shell particles. Comparison between the effectiveness of separation on both columns was established and the new morphologies proved their capability of replacing the totally porous particles with higher resolution power at shorter analysis time. Carbetocin is an oxytocin analogue with a longer duration of action that stimulates uterine contraction and milk ejection in mammals. Monolithic column was also applied for quantitative HPLC analysis of carbetocin using ethanol as cheap and greener alternative organic modifier without compromise to a full impurity profiling. The proposed method was validated concerning with accuracy, precision, robustness, sensitivity, limits of detection and quantitation and proved to be green and stability indicating.
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ehab-ibrahim2020monolithicannales Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ehab Ibrahim, A;Hashem, H;Elhenawee, M;Saleh, H;
Journal annales pharmaceutiques francaises
Year 2020
DOI
S0003-4509(20)30013-4
URL
Keywords
protein analysis analyse des protéines carbetocin core-shell particles erythropoietin hormone la carbétocine l’hormone érythropoïétine monolithic rods particules noyau-coquille tiges monolithiques

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