Results 31 to 40 of about 125,999 (289)

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

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

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

A new approach to ion exchange chromatography with conductivity detection for adulterants investigation in dietary supplements

open access: yes, 2020
The extent of adulteration of dietary supplements has significantly increased in recent years. This situation worries health authorities and requires auxiliary analytical tools for the investigation of illegal substances purposely added.
Dal Molin, Thais Ramos   +6 more
core   +1 more source

Integrated Nano Liquid Chromatography System On-a-Chip [PDF]

open access: yes, 2006
Integrated liquid chromatography (LC) chips are valued because of their significant advantages over conventional systems. However, they are very challenging to build due to the high complexity of LC systems and the need for high-level integration of many
He, Qing
core   +1 more source

Determination of chlorine-containing compounds in disinfectants using ion-exchange chromatography

open access: yesТонкие химические технологии, 2023
Objectives. To develop a method for the determination of hypochlorite, chloride, chlorite, chlorate, and perchlorate ions in solution; to determine the limits of detection and quantitation for ClO−, Cl−, ClO2−, ClO3−, and ClO4− ions; to evaluate the ...
E. A. Lapina   +3 more
doaj   +1 more source

Ion exchange chromatography – basic principles and application [PDF]

open access: yes, 2011
Ion-Exchange Chromatography (IEC) allows for the separation of ionizable molecules on the basis of differences in charge properties. Its large sample-handling capacity, broad applicability (particularly to proteins and enzymes), moderate cost, powerful ...
Dowling, Oonagh   +3 more
core  

Sample preparation in ion-chromatography

open access: yes, 1979
lon-chromatography, a relatively new technique in analytical chemistry, has already shown great promise toward solving complex trace analysis problems, in particular the speciation and quantitation of anions.
Koch, W.F.
core   +1 more source

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