An Innovative Technique for Water Retention Characterization of Highly Swelling Geomaterials
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The detn. of glycerol in aq. allergenic products is accomplished by gas chromatog. using a column packed with Chromosorb 101 and FID. Quantitation is performed using the internal std. technique. The method is accurate to within 1% and has proved to be supe ...
In this study, we report that intercalation of tin into montmorillonite clay (Sn‐MMT) boosts catalytic activity for the synthesis of polyoxymethylene dimethyl ethers, a promising diesel fuel additive. This increase in activity is attributed to the formatio ...
We have developed a simple and accurate isocratic HPLC method, without any prederivatisation, for the determination of glucose, lactate, glutamine, glutamate, pyrrolidone carboxylic acid and alanine in samples from mammalian cell cultures. The method has b ...
New variants are presented of the selectively inverted soft correlation NMR spectroscopy using multiple-frequency decoupling. Tests were made using the std. Me trans-2-phenylcyclopropanecarboxylate. This method can det. arbitrary coupling consts. with grea ...