Results 31 to 40 of about 712,351 (297)

Prospects for ion chromatography in quality assessment of biologicals

open access: yesБиопрепараты: Профилактика, диагностика, лечение, 2022
Quantitative characterisation of excipients in biologicals is an important part of the quality assurance process both at the level of finished products and intermediates, as well as active pharmaceutical ingredients.
A. S. Minero   +3 more
doaj   +1 more source

Effect of ion-exchange chromatography on removal of fibronectin in von Willebrand factor

open access: yesZhongguo shuxue zazhi, 2023
Objective To study the removal effect of fibronectin(Fn) from von willebrand factor(vWF) by ion-exchange chromatography through processing human coagulation factor Ⅷ chromatographic washing products, in order to select a method that can effectively ...
Zheng ZHOU   +4 more
doaj   +1 more source

Pitfall in the high-throughput quantification of whole blood cyclosporin A using liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2005
In a growing number of laboratories the technique of liquid chromatography-tandem mass spectrometry is used for the quantification of cyclosporin A in whole blood, employing cyclosporin D as the internal standard. Cyclosporin A is extensively metabolized
Spöhrer, Ute, Vogeser, Michael
core   +2 more sources

Moldable capillary suppressor for open tubular ion chromatography based on a polymeric ion exchanger.

open access: yesTalanta Open, 2021
We successfully fabricated 45 μm bore microchannels in PVA-Poly(styrenesulfonate) cation exchange polymers. by casting aqueous prepolymer mixtures around fine tungsten wire mandrels, curing, crosslinking by thermal annealing, and subsequently removing ...
Fereshteh Maleki   +3 more
doaj   +1 more source

Ion chromatography in the liqueurs and spirits quality control [PDF]

open access: yesE3S Web of Conferences, 2020
In the presented work, the ionic composition of liqueurs and spirits from different manufacturers was investigated. It was found that the ionic composition of studied samples is represented mainly by cations of sodium, potassium, calcium and magnesium ...
Abramova Irina   +4 more
doaj   +1 more source

Determination of four additives in cakes by large volume gradient ion chromatography [PDF]

open access: yesE3S Web of Conferences, 2021
This paper aims to establish a detection method for simultaneous determining four additives in flour products: one simultaneously determines the acesulfame, sodium cyclamate, bromate, and calcium propionate through the selection of ion chromatography ...
Liu Ye, Gu Pei, Liu Yaling
doaj   +1 more source

Two-step separation of nostotrebin 6 from cultivated soil cyanobacterium (Nostoc sp.) by high performance countercurrent chromatography [PDF]

open access: yes, 2014
High performance countercurrent chromatography (HPCCC) was successfully applied for the separation of nostotrebin 6 from cultivated soil cyanobacteria in a two-step operation.
Berthod   +13 more
core   +2 more sources

Separations of lipids by silver ion chromatography

open access: yesJournal of Lipid Research, 1966
The possibility of separating lipid materials on the basis of the number, type, and position of the unsaturated centers they contain, by virtue of the complexing of these unsaturated bonds with silver ions, provides a relatively recent but now very ...
L.J. Morris
doaj   +1 more source

Applications of Direct Injection Soft Chemical Ionisation-Mass Spectrometry for the Detection of Pre-blast Smokeless Powder Organic Additives [PDF]

open access: yes, 2019
Analysis of smokeless powders is of interest from forensics and security perspectives. This article reports the detection of smokeless powder organic additives (in their pre-detonation condition), namely the stabiliser diphenylamine and its derivatives 2-
A Jordan   +45 more
core   +2 more sources

Competitive adsorption of plasma proteins at solid—liquid interfaces [PDF]

open access: yes, 1986
The competitive adsorption of human serum albumin (HSA), human immuno-γ-globulin (HIgG) and human fibrinogen (HFb) onto polystyrene (PS) at 20° C and a pH of 7.35 (phosphate-buffered saline) was studied.
Breemhaar, W.   +3 more
core   +3 more sources

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