HPLC study of the adsorption from solutions on two silicagels

1997 ◽  
Vol 46 (3-4) ◽  
pp. 183-190 ◽  
Author(s):  
M. P. Elizalde-González ◽  
A. A. Peláez-Cid ◽  
H. Ramírez-López
Keyword(s):  
Adsorption From Solutions ◽  
Hplc Study

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.

HPLC study on the carotenoid composition of Calendula products

2002 ◽  
Vol 53 (1-3) ◽  
pp. 241-250 ◽  
Author(s):  
Eszter Bakó ◽  
József Deli ◽  
Gyula Tóth
Keyword(s):  
Carotenoid Composition ◽  
Hplc Study

HPLC study of fatty-acid components of dry mumijo extract

1996 ◽  
Vol 30 (6) ◽  
pp. 421-423 ◽  
Author(s):  
T. L. Kiseleva ◽  
L. N. Frolova ◽  
L. A. Baratova ◽  
A. K. Yus'kovich
Keyword(s):  
Fatty Acid ◽  
Hplc Study

HPLC Study Off Some Biologically Active Quinazolines

1984 ◽  
Vol 7 (12) ◽  
pp. 2493-2506 ◽  
Author(s):  
A. Shalaby ◽  
Zs. BudVári-Bárány ◽  
K. Hankó-Novák ◽  
Gy. Szász
Keyword(s):  
Biologically Active ◽  
Hplc Study

scholarly journals Adsorption of selected pharmaceuticals on activated carbons from water

2018 ◽  
Vol 44 ◽  
pp. 00089 ◽  
Author(s):  
Joanna Lach ◽  
Anna Szymonik ◽  
Agnieszka Ociepa-Kubicka
Keyword(s):  
Salicylic Acid ◽  
Activated Carbon ◽  
Surface Water ◽  
Correlation Coefficient ◽  
Activated Carbons ◽  
Kinetics Equation ◽  
Adsorption Efficiency ◽  
Adsorption From Solutions ◽  
Freundlich Equation ◽  
Treated Sewage

The possibility of using activated carbon for the removal of salicylic acid andiibuprofen sodium has been explored. These compounds are observed in crude and treated sewage and in surface water. The effect of pH on the adsorption efficiency was assessed. Tests were carried out from solutions with pH ranging from 2 to 10 (salicylic acid) and from 6 to 10 (iibuprofen sodium). It was found that the higher pH, the lower the adsorption of the compounds tested. Salicylic acid was most efficiently adsorbed from a solution with pH = 2, in which it occurred mainly in an undissociated form. The achieved efficiency of salicylic acid adsorption from solutions with pH=2 was 91%, while from those with pH=10, it was 55% (Co=4 mmol/L). The efficiency of removing ibuprofen sodium from the pH=6 solution was 64%, while from the pH = 10 solution, 60%.The adsorption of both salicylic acid and ibuprofen sodium follows the kinetics equation of the pseudo-2nd order. For the description of the adsorption isotherms, the Freundlich, Langmuir, Temkin and Dubibin-Radushkevich models were employed. The both compounds are described with the highest correlation coefficient in the case of the Freundlich equation.

Hunger and satiation-related changes of CA metabolites in the amygdala: an in vivo microdialysis — HPLC study

Appetite ◽  
1992 ◽  
Vol 19 (2) ◽  
pp. 197 ◽  
Author(s):  
L. Lénárd ◽  
A. Hajnal ◽  
A. Czurkó ◽  
I. Vida ◽  
I. Åbraham ◽  
...  
Keyword(s):  
In Vivo Microdialysis ◽  
Hplc Study
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