Results 81 to 90 of about 137,428 (211)

Pilot dynamic response to sudden flight control system failures and implications for design [PDF]

Pilot dynamic response to sudden flight control system ...
Johnson, W. A., Weir, D. H.
core   +1 more source

Refinement of Retention Indices in Gas Chromatography for a Number of Substituted Phenols

Analytica
Substituted phenols, including chlorophenols, are important analytes, particularly in the context of environmental analysis. Chlorophenols are formed during the disinfection of drinking water by chlorination and are important water pollutants.
Anastasia Yu. Sholokhova, Svetlana A. Borovikova, Dmitriy D. Matyushin   +2 more
doaj   +1 more source

Use of high pressure liquid chromatography in the study of liquid lubricant oxidation [PDF]

The general principles of classical liquid chromatography and high-pressure liquid chromatography (HPLC) are reviewed, and their advantages and disadvantages are compared.
Morales, W.
core   +1 more source

Evaluation of Retention Mechanisms of Polar Compounds on Polar Stationary Phases Based on Type C Silica

Separations
Polar compounds can be separated on polar stationary phases attached on the surface of silica hydride (Type C silica). Although aqueous normal phase (ANP) chromatography has been used to denote this mode of separation, there have been no detailed studies
Minzhu Zou, Yong Guo
doaj   +1 more source

Ion-pair chromatographic attribute in the retention of ammonium ion on a crown ether-based and a polysaccharide-based chiral stationary phases. Some mobile phase additives compatible with liquid chromatography-electrospray ionization-mass spectrometry

Journal of Chromatography Open
The design of the mobile phase additive useful in HPLC analysis on two types of chiral stationary phases, one based on chiral crown ether, and another based on polysaccharide derivative, was developed. CROWNPAK® CR-I, the chiral stationary phase bearing (
Tohru Shibata, Satoshi Shinkura, Atsushi Ohnishi, Akari Yamamoto, Yuichi Fujioka, Nobuhiro Kawahara   +5 more
doaj   +1 more source

Capillary HPLC Separation of Selected Neuropeptides [PDF]

, 2012
Neuropeptides play a pivotal role in brain and peripheral nervous system function. As high performance liquid chromatography (HPLC) becomes the central tool in the separation and characterization of peptide and protein samples, its selectivity ...
Yi, Ying
core  

Counteracting Bleeding in Centrifugal Partition Chromatography: Redosing of the Stationary Phase

Separations
Centrifugal Partition Chromatography is a type of Liquid-Liquid Chromatography that offers several advantages compared to Liquid Chromatography. Two immiscible liquids are utilized, and one phase has to be immobilized to implement chromatographic ...
Felix Buthmann, Jan Hohlmann, Sophia Volpert, Mareen Neuwald, Djamal Hamza, Gerhard Schembecker   +5 more
doaj   +1 more source

Underlying Mechanisms of Chromatographic H/D, H/F, cis/trans and Isomerism Effects in GC-MS

Metabolites
Charge-free gaseous molecules labeled with deuterium 2H (D) atoms elute earlier than their protium-analogs 1H (H) from most stationary GC phases. This effect is known as the chromatographic H/D isotope effect (hdIEC) and can be calculated by dividing the
Dimitrios Tsikas
doaj   +1 more source

Inverz módszerek kidolgozása a molekuláris kölcsönhatások vizsgálatára folyadékkromatográfiában = Developing inverse methods to study the molecular interactions in liquid chromatography [PDF]

, 2009
Elsősorban a fordított fázisú folyadékkromatográfia területén tanulmányoztuk különböző vegyületek megkötődésének retenciós mechanizmusát, illetve kinetikáját, de vizsgálatainkat kiterjesztettük az ioncsere-kromatográfia, a királis elválasztások és a ...
Felinger, Attila
core  

The enantioselective potential of amylose tris(3‑chloro-5-methylphenyl carbamate)-based chiral stationary phase in sub/supercritical fluid and normal phase liquid chromatography

Journal of Chromatography Open
The enantioselective potential of amylose tris (3‑chloro-5-methylphenylcarbamate) based chiral stationary phase in sub/supercritical fluid chromatography and normal phase liquid chromatography was evaluated.
Denisa Folprechtová, Patricia Maestro Martínez, Květa Kalíková   +2 more
doaj   +1 more source