Influence of Metal Impurities in Silica Gel on Protein Analysis in Reversed-phase HPLC

1990 ◽  
Vol 19 (4) ◽  
pp. 687-690 ◽  
Author(s):  
Junichi Koyama ◽  
Junko Nomura ◽  
Yutaka Ohtsu ◽  
Okitsugu Nakata ◽  
Motoji Takahashi
Keyword(s):  
Silica Gel ◽  
Protein Analysis ◽  
Reversed Phase ◽  
Reversed Phase Hplc ◽  
Metal Impurities

scholarly journals Retention behaviour of estradiol derivatives in reversed phase HPLC

2005 ◽  
pp. 169-178
Author(s):  
Marijana Acanski ◽  
Slobodan Petrovic
Keyword(s):  
Linear Relationship ◽  
Silica Gel ◽  
Mobile Phase ◽  
Volume Fraction ◽  
Reversed Phase ◽  
Considerable Effect ◽  
Reversed Phase Hplc ◽  
Retention Behaviour ◽  
Estradiol Derivatives ◽  
Octadecyl Silica Gel

Retention behaviour ofestradiol derivatives has been studied by the reversed phase HPLC. LiChrosorb RP-18 column end eluents consisting of methanol respectively aceto-nitrile and water in various proportions, were used. It was shown that there is a linear relationship between the retention constant and the volume fraction of organic component in the mobile phase. The slopes and intercepts of lines are in agreement with the polarity of derivatives studied. Considerable effect on the chromatographic behaviour exerted the type and position of substituents in the molecule of estradiol derivative. Results obtained in these investigations are compared with results of the same derivatives obtained in previous investigations on octadecyl silica gel in TLC with eluent methanol-water in various proportions.

scholarly journals A Reversed-phase HPLC Study of the Complexation of Benzene Derivatives Guest Molecules with 5,17-bis(N-Tolyliminomethyl)-25,27-dipropoxycalix[4]arene in Acetonitrile–Water Solution

1999 ◽  
Vol 23 (1) ◽  
pp. 60-61
Author(s):  
O. I. Kalchenko ◽  
A. V. Solovyov ◽  
J. Lipkowski ◽  
V. I. Kalchenko
Keyword(s):  
Stability Constants ◽  
Water Solution ◽  
Reversed Phase ◽  
Benzene Derivatives ◽  
Reversed Phase Hplc ◽  
Guest Molecules ◽  
Hplc Study

Stability constants of the host–guest complexes of 5,17-bis( N-tolyliminomethyl)-25,27-dipropoxycalix[4]arene with benzene derivatives were determined by reversed-phase HPLC in acetonitrile–water solution.

Determination of 5-hydroxymethyl-2-furaldehyde in royal jelly by a rapid reversed phase HPLC method

2013 ◽  
Vol 5 (19) ◽  
pp. 5010 ◽  
Author(s):  
Marco Ciulu ◽  
Roberta Farre ◽  
Ignazio Floris ◽  
Valeria M. Nurchi ◽  
Angelo Panzanelli ◽  
...  
Keyword(s):  
Royal Jelly ◽  
Reversed Phase ◽  
Hplc Method ◽  
Reversed Phase Hplc

Simultaneous Determination of Ibuprofen and Pseudoephedrine Hydrochloride in Pharmaceutical Tablets by Reversed-Phase HPLC

2009 ◽  
Vol 42 (18) ◽  
pp. 2951-2961 ◽  
Author(s):  
Marie-Hélène Langlois ◽  
Philippe Dallet ◽  
Tina Kauss ◽  
Jean-Pierre Dubost
Keyword(s):  
Simultaneous Determination ◽  
Reversed Phase ◽  
Reversed Phase Hplc ◽  
Pharmaceutical Tablets
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