Enhancement of the ion-pairing HPLC analysis of cellular 2′-deoxyadenosine 5′-triphosphate, 2′,3′-dideoxyadenosine 5′-triphosphate and 2′-fluoro-2′,3′-dideoxyadenosine 5′-triphosphate pools through periodate-treatment and fluorogenic derivatization

1997 ◽  
Vol 34 (2) ◽  
pp. A49
Author(s):  
H. Zhang ◽  
B. Hall ◽  
S. Kunder ◽  
O.L. Wood ◽  
M.A. Bacho ◽  
...  
Keyword(s):  
Hplc Analysis ◽  
Ion Pairing ◽  
Periodate Treatment ◽  
Fluorogenic Derivatization

HPLC analysis of flavonoids of Astragalus gossypinus (Fabaceae), as a medicinal plant in the West of Iran

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
M Atri ◽  
M Asgari Nematin ◽  
E Tamari
Keyword(s):  
Medicinal Plant ◽  
Hplc Analysis ◽  
The West

Quantitative HPLC analysis of chamuangone in Garcinia cowa leaf extracts

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
P Panichayupakaranant ◽  
A Sakunpak
Keyword(s):  
Hplc Analysis ◽  
Leaf Extracts ◽  
Garcinia Cowa ◽  
Quantitative Hplc Analysis ◽  
Quantitative Hplc

RP-HPLC analysis of withanolides in the flowers, leaves, and roots ofWithania somnifera

2010 ◽  
Vol 22 (3) ◽  
pp. 473-480 ◽  
Author(s):  
N. W. Ali ◽  
S. Abouzid ◽  
A. Nasib ◽  
S. Khan ◽  
J. Qureshi ◽  
...  
Keyword(s):  
Hplc Analysis ◽  
Rp Hplc ◽  
Leaves And Roots

Ion Pairing and Dielectric Decrement in Glycosaminoglycan Brushes

2020 ◽  
Author(s):  
James Sterling ◽  
Wenjuan Jiang ◽  
Wesley M. Botello-Smith ◽  
Yun L. Luo
Keyword(s):  
Molecular Dynamics ◽  
Ion Pairs ◽  
Mean Field ◽  
Salt Bridge ◽  
Ion Pairing ◽  
Donnan Potential ◽  
Mean Field Models ◽  
Ion Exclusion ◽  
Dynamics Simulations ◽  
Contact Ion Pairs

Molecular dynamics simulations of hyaluronic acid and heparin brushes are presented that show important effects of ion-pairing, water dielectric decrease, and co-ion exclusion. Results show equilibria with electroneutrality attained through screening and pairing of brush anionic charges by cations. Most surprising is the reversal of the Donnan potential that would be expected based on electrostatic Boltzmann partitioning alone. Water dielectric decrement within the brush domain is also associated with Born hydration-driven cation exclusion from the brush. We observe that the primary partition energy attracting cations to attain brush electroneutrality is the ion-pairing or salt-bridge energy associated with cation-sulfate and cation-carboxylate solvent-separated and contact ion pairs. Potassium and sodium pairing to glycosaminoglycan carboxylates and sulfates consistently show similar abundance of contact-pairing and solvent-separated pairing. In these crowded macromolecular brushes, ion-pairing, Born-hydration, and electrostatic potential energies all contribute to attain electroneutrality and should therefore contribute in mean-field models to accurately represent brush electrostatics.

RP-HPLC ANALYSIS OF CARBONYL COMPOUNDS IN SOME INDOOR AIR SAMPLES IN A FACULTY FROM CLUJ-NAPOCA

2013 ◽  
Vol 12 (2) ◽  
pp. 219-225
Author(s):  
Carmen Roba ◽  
Cristina Rosu ◽  
Iulia Neamtiu ◽  
Eugen Gurzau
Keyword(s):  
Indoor Air ◽  
Carbonyl Compounds ◽  
Hplc Analysis ◽  
Air Samples ◽  
Rp Hplc

HPLC Analysis of Flavonoids from the Aerial Parts of Bupleurum Species

2010 ◽  
Vol 8 (2) ◽  
pp. 107-113 ◽  
Author(s):  
Ting-Ting ZHANG ◽  
Jin-Song ZHOU ◽  
Qiang WANG
Keyword(s):  
Hplc Analysis ◽  
Aerial Parts
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