Liposomes as potential masking agents in sport doping. Part 1: analysis of phospholipids and sphingomyelins in drugs and biological fluids by aqueous normal-phase liquid chromatography-tandem mass spectrometry.
Sign Up to like & getrecommendations! Published in 2017 at "Drug testing and analysis"
DOI: 10.1002/dta.1939
Abstract: In the present work, aqueous normal-phase liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS), in different acquisition modes, was employed for the direct analysis and profiling of nine phospholipid classes (phosphatidic acids, phosphatidylserines, phosphatidylethanolamines, lysophosphatidylethanolamines,… read more here.
Keywords: phase liquid; normal phase; aqueous normal; analysis ... See more keywords
A new single‐urea‐bound 3,5‐dimethylphenylcarbamoylated β‐cyclodextrin chiral stationary phase and its enhanced separation performance in normal‐phase liquid chromatography
Sign Up to like & getrecommendations! Published in 2018 at "ELECTROPHORESIS"
DOI: 10.1002/elps.201700273
Abstract: A new single‐urea‐bound chiral stationary phase based on 3,5‐dimethylphenylcarbamoylated β‐cyclodextrin was prepared through the Staudinger reaction of mono (6A‐azido‐6A‐deoxy)‐per(3,5‐dimethylphenylcarbamoylated) β‐cyclodextrin and 3‐aminopropyl silica gel under CO2 atmosphere. The new phase exhibited good enantioseparation performance for… read more here.
Keywords: phase; dimethylphenylcarbamoylated cyclodextrin; normal phase; stationary phase ... See more keywords
Normal Phase Chromatographic Separation of Pigmented Wine Tannin by nano-HPLC Quadrupole Time of Flight Tandem Mass Spectrometry and Identification of Candidate Molecular Features.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of the science of food and agriculture"
DOI: 10.1002/jsfa.11115
Abstract: BACKGROUND As a wine ages, altered sensory properties lead to changes in perceived quality and value. Concurrent modification of anthocyanin and tannin occur forming pigmented tannin, softening astringency and retaining persistent color. Wine tannin extracts… read more here.
Keywords: normal phase; tannin; wine tannin; molecular features ... See more keywords
Separation of cis/trans Isomers of 4,5-Dihydroxyimidazolidine-2-thione and 4,5-Dimethoxyimidazolidine-2-thione by Aqueous Normal-Phase HPLC Mode
Sign Up to like & getrecommendations! Published in 2020 at "Chromatographia"
DOI: 10.1007/s10337-020-03926-8
Abstract: An aqueous normal-phase high-performance liquid chromatography method was developed to separate cis/trans isomers of 4,5-dihydroxyimidazolidine-2-thione and 4,5-dimethoxyimidazolidine-2-thione on a Luna HILIC 200 Å column containing silica surface covered with cross-linked diol with an eluent acetonitrile/water… read more here.
Keywords: dimethoxyimidazolidine thione; phase; normal phase; thione ... See more keywords
Trace Level Analysis of Sarin and VX in Food Using Normal Phase Silica Gel and Ultra-Performance Liquid Chromatography-Time-of-Flight Mass Spectrometry (UPLC-TOF-MS).
Sign Up to like & getrecommendations! Published in 2018 at "Journal of agricultural and food chemistry"
DOI: 10.1021/acs.jafc.8b01756
Abstract: Ultra-Performance Liquid Chromatography/electrospray ionization mass spectrometry was used for the trace level determination of isopropyl methylphosphonofluoridate (Sarin, GB) and ( O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate (VX) after extraction from various foods. A method utilizing normal phase silica… read more here.
Keywords: phase; phase silica; silica gel; normal phase ... See more keywords
Enantiomeric Separation and Degradation of Benoxacor Enantiomers in Horticultural Soil by Normal-Phase and Reversed-Phase High Performance Liquid Chromatography
Sign Up to like & getrecommendations! Published in 2023 at "International Journal of Molecular Sciences"
DOI: 10.3390/ijms24108887
Abstract: The separation of benoxacor enantiomers on six commercial chiral columns was investigated by high-performance liquid chromatography (HPLC) under normal-phase and reversed-phase conditions. The mobile phases included hexane/ethanol, hexane/isopropanol, acetonitrile/water, and methanol/water. The effects of the… read more here.
Keywords: normal phase; reversed phase; separation; benoxacor enantiomers ... See more keywords