P. Dupin et al., ANALYSIS OF RECOMBINANT HUMAN GROWTH-HORMONE AND ITS RELATED IMPURITIES BY CAPILLARY ELECTROPHORESIS, Journal of chromatography, 707(2), 1995, pp. 396-400
Citations number
16
Categorie Soggetti
Chemistry Analytical","Biochemical Research Methods
A convenient free solution capillary electrophoretic method is describ
ed for the simultaneous quantitation of human growth hormone (hGH) and
its related impurities in pharmaceutical preparations. The separation
of the cleaved form, the monodeamidated form and two new compounds wh
ich may arise from post-translational modifications in Escherichia col
i-a succinylated hGH with a blocked amino terminus and a modified hGH
having a His to Gin replacement at sequence position 18-is described.
The proposed capillary electrophoretic method shows good specificity,
linearity and precision. A limit of detection of 0.03% was calculated
for the impurities.