Results 241 to 250 of about 36,758 (301)

Comprehensive profiling of arsenosugars in algae using UHPLC-HRMS and UHPLC-IMS-Q-TOF. [PDF]

Anal Bioanal Chem
Morales-Rodríguez A, Sahuquillo À, López-Sánchez JF, Barrón D, Moyano E.   +4 more
europepmc   +1 more source

A review of pretreatment methods and detection techniques for nonylphenol. [PDF]

Front Public Health
Yao H, Yu J, Xu J.
europepmc   +1 more source

Integrated Biomimetic 2D-LC and Permeapad^® Assay for Profiling the Transdermal Diffusion of Pharmaceutical Compounds. [PDF]

Molecules
Neri I, Stevens C, Russo G, Grumetto L.
europepmc   +1 more source

An Automated HPLC Method for SARA Fractionation of Asphalts: Operational Assessment and Comparison with ASTM D4124. [PDF]

ACS Omega
Polacco G, Filippi S, Riccardi C, Leandri P, Losa M.   +4 more
europepmc   +1 more source

Retention of the stationary phase for high-speed countercurrent chromatography

AICHE Journal, 2007
AbstractHigh‐speed countercurrent chromatography (HSCCC) is an emerging technique for preparative purification of a wide variety of solutes. Retention of the stationary phase is a crucial variable which is used for the derivation of the column efficiency, peak resolution, and solute retention.
Chao-Hong He, Chun-Xia Zhao
exaly   +5 more sources

Retention of opioids and their glucuronides on a combined zwitterion and hydrophilic interaction stationary phase

Journal of Chromatography A, 2008
A stationary phase combining zwitterionic ion chromatography and hydrophilic interaction chromatography (ZIC-HILIC) from SeQuant was evaluated for the chromatography of some opiates and their polar metabolites. The effects of mobile phase constitution on retention and resolution were extensively evaluated. Different aspects of mobile phase constitution
S, Vikingsson, R, Kronstrand, M, Josefsson   +2 more
openaire   +3 more sources

Riboflavin binding protein—Chiral stationary phase: Investigation of retention mechanism

Chromatographia, 2002
The chiral recognition mechanism of Riboflavin Binding Protein (RfBP) stationary phase has been investigated by studying the influence of temperature on the retention process.
CALLERI, ENRICA, DE LORENZI, ERSILIA, MASSOLINI, GABRIELLA, SILUK D., MARKUSZEWSKI M., KALISZAN R.   +5 more
openaire   +3 more sources

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Fabrication and evaluation of tetraazahexaphenylmacrocycle-bonded stationary phase with multiple retention mechanisms

Journal of Chromatography A, 2021
A 34-membered tetraazahexaphenylmacrocycle (N4Ph6) with a rigid π-conjugated moiety was chemically bonded to silica gel with 3-chloropropyltrimethoxysilane as the coupling agent to prepare a novel SiO2@N4Ph6 stationary phase. Several common organic analytes, including alkylbenzenes, polycyclic aromatic hydrocarbons, anilines, phenols, phthalates, and ...
Yaming Sun, Hailiang Zhao, Wenjie Zhao   +2 more
exaly   +3 more sources

Effects of temperature on retention of chiral compounds on a ristocetin A chiral stationary phase

Journal of Chromatography A, 2002
The isocratic retention of enantiomers of chiral analytes, i.e. tryptophan, 1,2,3,4-tetrahydroisoquinoline and gamma-butyrolac tone analogs, was studied on a ristocetin A chiral stationary phase at different temperatures and with different mobile phase compositions, using the reversed-phase, polar-organic and normal-phase modes.
Antal Peter, Daniel W Armstrong
exaly   +3 more sources