Results 21 to 30 of about 165,016 (280)

Paired emitter-detector diode detection with dual wavelength monitoring for enhanced sensitivity to transition metals in ion chromatography with post-column reaction [PDF]

open access: yes, 2009
The combination of post-column derivatisation and visible detection are regularly employed in ion chromatography (IC) to detect poorly absorbing species. Although this mode is often highly sensitive, one disadvantage is the increase in repeating baseline
Shepherd, Roderick   +12 more
core   +1 more source

Isolation and Characterization of a Phaseolus vulgaris Trypsin Inhibitor with Antiproliferative Activity on Leukemia and Lymphoma Cells

open access: yesMolecules, 2017
A 17.5-kDa trypsin inhibitor was purified from Phaseolus vulgaris cv. “gold bean” with an isolation protocol including ion exchange chromatography on DEAE-cellulose (Diethylaminoethyl-cellulose), affinity chromatography on Affi-gel blue gel, ion exchange
Miao Li   +5 more
doaj   +1 more source

Separation of Natural Collagen Crosslinks Using Buffer and Ion-pairing Agent Free Solvents on Silica Hydride Column for Mass Spectrometry Detection

open access: yesBio-Protocol, 2019
In this protocol we describe the separation of collagen crosslinks in biological tissues and samples including skin, tendon, cartilage, bone and urine. The existing methods use either cation exchange chromatography followed by post-column derivatization ...
Rafea Naffa, Joseph Pesek
doaj   +1 more source

Dendrimer Anion-Exchange Stationary Phase for Separation of Oligonucleotides

open access: yesMolecules, 2022
Oligonucleotides are used in many research areas. Thus, there is a need for their successful separation methods. Ion-exchange chromatography is the most popular separation technique, but it has limitations for these compounds.
Sylwia Studzińska   +3 more
doaj   +1 more source

ION EXCHANGE CHROMATOGRAPHY

open access: yes, 2023
Ion exchange chromatography is a chromatography process that separates ions and polar molecules based on their affinity to the ion exchanger. Ion exchange chromatography is probably the most powerful and classic type of liquid chromatography. It can also used for almost all kinds of charged molecule including large proteins, small nucleotides and amino
  +4 more sources

PEMISAHAN ASAM AMINO DARI LIMBAH CAIR PABRIK KELAPA SAWIT DENGAN KROMATOGRAFI PENUKAR ION

open access: yesSains Natural, 2018
Separation of Amino acid from Liquid waste of Oil palm Factory with Ion Exchange Chromatography Research on Separation of Amino Acid Liquid Waste mills with Ion Exchange Chromatography was carried out from October to November 2015.
Indah Rahmi Sari   +2 more
doaj   +1 more source

Ion-Exclusion/Cation-Exchange Chromatography Using Dual-Ion-Exchange Groups for Simultaneous Determination of Inorganic Ionic Nutrients in Fertilizer Solution Samples for the Management of Hydroponic Culture

open access: yesAgronomy, 2021
In this study, ion-exclusion/cation-exchange chromatography (IEC/CEC) using dual-ion-exchange groups (carboxy and sulfo groups) for the simultaneous determination of anions (SO42−, Cl−, NO3−, and HPO42−) and cations (Na+, NH4+, K+, Mg2+, and Ca2+) was ...
Daisuke Kozaki   +7 more
doaj   +1 more source

Ion chromatography and ion chromatography / mass spectrometry as a complementary analysis technique for amino acid analysis in food, a review

open access: yes, 2023
Background: Amino acids are the building blocks of life. Nine of the 20 common amino acids need to be consumed from food, as they are not created within the body.
M.T. Fletcher   +7 more
core   +1 more source

Enzymatic activity of bromelain isolated pineapple (Ananas comosus) hump and its antibacterial effect on Enterococcus faecalis

open access: yesScientific Dental Journal, 2018
Background: Enterococcus faecalis is the frequent cause of oral infections, such as periodontitis, infected root canals, and peri-radicular abscesses. Pineapple (Ananas comosus) fruit contains bromelain, one of proteolytic enzymes associated with several
Dewi Liliany   +4 more
doaj   +1 more source

Chromatographic separation of mannitol from mixtures of other carbohydrates in aqueous solutions

open access: yesCzech Journal of Food Sciences, 2021
The isolation of mannitol from natural sources, e.g. from plant extracts or broths, requires considerable time and effort. The separation of mannitol from aqueous solutions containing also glucose, fructose, and sucrose was tested using discontinuous ...
Simona Gillarová   +7 more
doaj   +1 more source

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