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Digitale Medien

When Not to Acidize (1967)

Walker, W. H.

Oxford, UK : Blackwell Publishing Ltd

Ground water 5 (1967), S. 0

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ISSN: 1745-6584

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Energietechnik , Geologie und Paläontologie

Notizen: Acidizing water wells to increase yield has proved to be an uneconomical method of well development or rehabilitation in some cases where the aquifer permeability was low and normal operating head great, in wells affected by methane gas, or where the practical sustained yield of the aquifer had been exceeded. Illinois studies show that controlled pumping tests before, during and after development are necessary to accurately evaluate the effectiveness of rehabilitation methods employed. Geologic definition of aquifers and records of pumpage and water-level information are invaluable aids.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1745-6584.1967.tb01248.x

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Digitale Medien

Binding of Cortisol to Human Albumin (1967)

PEARSON, JEAN ; KEANE, P. M. ; WALKER, W. H. C.

[s.l.] : Nature Publishing Group

Nature 216 (1967), S. 1334-1335

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Albumin was obtained from Calbiochem as recrystal-lized human albumin grade B. It was seen to consist of only one immunological component when reacted in immunoelectrophoresis against anti-human serum (Burroughs Wellcome). Albumin solutions were prepared in 0-07 molar phosphate buffer, pH. 7-4, and ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/2161334a0

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Digitale Medien

Reduktive Photoalkylierung des Flavinkerns und Flavinkatalysierte Photodecarboxylierung von Phenylacetat Studien in der Flavinreihe. 15. Mitteilung [1] (1967)

Walker, W. H. ; Hemmerich, P. ; Massey, V.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 50 (1967), S. 2269-2279

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ISSN: 0018-019X

Schlagwort(e): Chemistry ; Organic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Structure and properties of leucoflavin derivatives obtained through flavinsensitized photodecarboxylation of phenylacetate ions are described. The photoreduction of flavin with phenylacetate as donor is shown to be a quantitative photoalkylation, the benzyl residue entering either position 5 (nitrogen) or the bridge position 4a (carbon) of the flavin nucleus, depending on the conditions. The isomers were isolated, and identified by IR., NMR., and elementary analysis. The benzyl residue migrates from N(5) to C(4a) upon heating.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/hlca.19670500812

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