Results 21 to 30 of about 746,497 (317)

Multidimensional Chromatography and Its Applications in Food Products, Biological Samples and Toxin Products: A Comprehensive Review

open access: yesSeparations, 2022
Food, drugs, dyes, extracts, and minerals are all made up of complex elements, and utilizing unidimensional chromatography to separate them is inefficient and insensitive.
Ruhul Amin   +6 more
doaj   +1 more source

Advancements in the characterisation of oligonucleotides by high performance liquid chromatography‐mass spectrometry in 2021: A short review

open access: yesAnalytical Science Advances, 2022
The first oligonucleotide therapeutic was approved by the Food and Drug Administration in 1998, and since then, 12 nucleic acids have been commercialised as medicines.
Fabien Hannauer   +5 more
doaj   +1 more source

Easy Computation of the Various Topologies and Modes of Liquid–Liquid Partition Chromatography by the Theory of Random Walks

open access: yesSeparations, 2021
The article revisits the discrete recurrence method to model the instruments of liquid–liquid partition chromatography as counter-current chromatography (CCC) and centrifugal partition chromatography (CPC).
Frédéric R. Dijoux, Tsvetelina Mandova
doaj   +1 more source

Purification of gangliosides by liquid-liquid partition chromatography

open access: yesJournal of Lipid Research, 2008
A liquid-liquid partition chromatographic technique was applied to separate amphiphilic glycolipids. A two-phase solvent system composed of n-butanol-t-butyl methyl ether-acetonitrile-water at a volume ratio of 3:1:1:5 was found to be suitable for ...
Tomohisa Kato, Kenichi Hatanaka
doaj   +1 more source

Phytochemical analysis of Panax species: a review

open access: yesJournal of Ginseng Research, 2021
Panax species have gained numerous attentions because of their various biological effects on cardiovascular, kidney, reproductive diseases known for a long time.
Yuangui Yang   +5 more
doaj   +1 more source

Combination of Medium- and High-Pressure Liquid Chromatography for Isolation of L-tryptophan (Q-marker) from Medicago sativa Extract

open access: yesSeparations, 2022
Medicago sativa (alfalfa) is a widely used animal feed. However, its quality has been difficult to control due to the lack of appropriate marker compounds.
Shixuan Zhang   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

A Novel High-Throughput and Sensitive Electrochemiluminescence Immunoassay System

open access: yesBioengineering
(1) Background: In vitro diagnostic (IVD) tests are the main means of obtaining diagnostic information for clinical purposes. The electrochemiluminescence immunoassay (ECLIA) has become an important in vitro diagnostic technique. It has unique advantages
Xiancheng Liu   +11 more
doaj   +1 more source

Research progress in detection technologies of mycotoxins in cereals and cereal-based products

open access: yesShipin yu jixie, 2023
Cereals and cereal-based products are easily polluted by mycotoxins in all aspects of production, storage and transportation, and mycotoxins are difficult to prevent due to their variety, low concentration, strong toxicity andlarge difference in nature ...
NIU Can-jie   +3 more
doaj   +1 more source

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