Journal ArticleDOI
Dissoziationskonstanten sehr schwacher Säuren
Nelly Konopik,O. Leberl +1 more
TLDR
In this article, die pH-Werten wurden die zugehorigen Sauredissoziationskonstanten berechnet und die Berechnungsweisen diskutiert.Abstract:
pH-Werte verschieden konzentrierter Losungen von Mono- und Di-Na-Glukosat, Di-Na-Salicylat, Na2HBO3, Na3BO3, Na3PO4, Na3AsO4 wurden kolorimetrisch auf ΔpH≦0,05 ermittelt; die Titration einer NaH2AsO3-Losung mit 1 Mol NaOH wurde, ebenfalls kolorimetrisch, verfolgt (II bis VII). Aus den pH-Werten wurden die zugehorigen Sauredissoziationskonstanten berechnet und die Berechnungsweisen diskutiert (I).read more
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Solution behavior of barley beta-glucan as studied with asymmetrical flow field-flow fractionation
TL;DR: In this paper, the effect of processing on solution behavior of pure barley b-glucan was studied using asymmetrical flow field-flow fractionation (AsFlFFF), a method which is capable of analyzing the present aggregates.
Journal ArticleDOI
Hydration of arsenic oxyacid species
TL;DR: The results from the DDIR studies support the assignment of As( OH)(3) as a weak structure maker analogous to Te(OH)(6), both being neutral weak oxyacids.
Journal ArticleDOI
Asymmetrical flow field-flow fractionation enables the characterization of molecular and supramolecular properties of cereal beta-glucan dispersions
TL;DR: The results in this paper show how distinction can possibly be made between molecular and supra molecular species using scaling approaches and conformational parameters obtained from AsFlFFF-MALS-RI over the entire size distribution.
Journal ArticleDOI
Rapid adsorption of arsenic from aqueous solution by ferrihydrite-coated sand and granular ferric hydroxide
Johan Mähler,Ingmar Persson +1 more
TL;DR: In this paper, the efficiency of As removal by Fe oxyhydroxide-based adsorbents was studied, where water containing micro-molar concentrations of As was cleaned using columns containing ferrihydrite-coated grains of sand or the commercial material granular ferric hydroxide, GFH®.