Results 11 to 20 of about 36,758 (301)

Peptide retention time prediction for immobilized artificial membrane phosphatidylcholine stationary phase: method development and preliminary observations

ADMET and DMPK, 2018
Development of the first peptide retention prediction model for immobilized artificial membrane phosphatidylcholine (IAM.PC) stationary phase is reported. 2D LC-MS/MS analysis of a whole cell lysate of S. cerevisiae yielded a retention dataset of ~29,500
Daniel Gussakovsky, Haley Neustaeter, Victor Spicer, Oleg Krokhine   +3 more
doaj   +3 more sources

Retention of Anions on Silica-based Metalloporphyrin Stationary Phases

Analytical Sciences, 2002
The silica-based Fe(III)-protoporphyrin and Zn-tetraphenylporphyrin stationary phases were examined for the HPLC separation of anions. The retention of nine common inorganic anions as well as benzoate anion (BA) and its hydroxy analogues (HBA) was examined using tartrate, acetate, and succinate eluents.
BIESAGA, Magdalena, STOLARCZYK, Elzbieta, PYRZYNSKA, Krystyna, TROJANOWICZ, Marek   +3 more
openaire   +3 more sources

Electrochromatographic retention of peptides on strong cation‐exchange stationary phases [PDF]

ELECTROPHORESIS, 2010
AbstractWe analyze the systematic and substantial electrical field‐dependence of electrochromatographic retention for four counterionic peptides ([Met5]enkephalin, oxytocin, [Arg8]vasopressin, and luteinizing hormone releasing hormone (LHRH) ) on a strong cation‐exchange (SCX) stationary phase.
Ivo, Nischang, Alexandra, Höltzel, Ulrich, Tallarek   +2 more
openaire   +2 more sources

Normal and reversed phase high performance liquid chromatography of some new 1, 2, 4-triazole derivatives [PDF]

Acta Periodica Technologica, 2003
The retention behaviour and separation ability of normal and reversed phase HPLC with one non-polar and two polar mobile phases, have been studied by measuring the retention constants of a series of newly synthesized 1,2,4-triazole derivatives.
Ačanski Marijana M., Perišić-Janjić Nada U., Dimova Vesna   +2 more
doaj   +1 more source

Retention of Halogenated Solutes on Stationary Phases Containing Heavy Atoms [PDF]

Molecules, 2013
To examine the effects of weak intermolecular interactions on solid-phase extraction (SPE) and chromatographic separation, we synthesized some novel stationary phases with a heavy atom effect layer by immobilizing halogenated aromatic rings and hydroxyl groups onto the surface of a hydrophilic base polymer.
Toshio Miwa, Atsushi Yamamoto, Mitsuru Saito, Yoshinori Inoue   +3 more
openaire   +3 more sources

Separation and lipophilicity of some new steroid derivatives in normal- and reversed-phase high performance liquid chromatography [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2011
The separation ability and retention of normal and reversed phase HPLC with, respectively, three non-polar and two polar mobile phases, have been studied by measuring the retention constants of a series of newly synthesized estrone derivatives.
Ačanski Marijana M., Vujuć Đura N., Jovanović-Šanta Suzana   +2 more
doaj   +1 more source

Normal and reversed phase thin-layer chromatography of new 16,17-secoestrone derivatives [PDF]

Journal of the Serbian Chemical Society, 2003
The retention behaviour and separation ability of a series of new 16,17-secoestrone derivatives has been studied on silica gel, alumina and C-18 silica gel layers with non-aqueous and aqueous-organic mobile phases.
SUZANA JOVANOVIC-SANTA, LIDIJA R. JEVRIC, MARIJANA M. ACANSKI   +2 more
doaj   +3 more sources

ZIF-8 Assisted Polyacrylamide Functionalized Silica Core-Shell Stationary Phase for Hydrophilic Interaction Liquid Chromatography

Separations, 2023
A novel ZIF-8 assisted polyacrylamide functionalized silica polar stationary phase was prepared by a facile method of adding ZIF-8 nanoparticles and silica into polyacrylamide (PAM) aqueous solution, and then stirring the mixture until the solution was ...
Tong Zhang, Yijing Li, Xiaofeng Lu, Yong Guo, Licheng Wang, Xiaojing Liang   +5 more
doaj   +1 more source

Application of Solvatic Model for Prediction of Retention at Gradient Elution in Reversed-Phase Liquid Chromatography

Acta Chimica Slovenica, 2019
There are several different approaches for LC method development; beside traditional, different software programs for method development and optimization are available.
Tina Snoj Ekmečič, Irena Kralj Cigic
doaj   +1 more source

The application of the extended thermodynamic approach to describe the effect of counterions, both of chaotropic agents and ionic strength modifiers, on the retention behavior of protonated basic analytes in chaotropic chromatography [PDF]

Arhiv za farmaciju
In this study, the extended thermodynamic approach was used to quantitatively explain the effect of counterions, both of chaotropic agents and ionic strength modifiers, in variable (vI) and constant ionic strength (cI) systems on the retention behavior ...
Gkountanas Kostas, Rmandić Milena, Protić Ana, Malenović Anđelija, Dotsikas Yannis   +4 more
doaj   +1 more source