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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 41 (1953), S. 148-153 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 41 (1953), S. 298-299 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Kalium kann in Mengen von 0,1 bis 2,0 mg durch Fällung als 12-Phosphomolybdat bestimmt werden. Die Abscheidung so geringer Mengen wird durch Abdampfen des überschüssigen Reagens bis zur beginnenden Kristallisation begünstigt. Nach Filtration des Niederschlages wird dieser alkalimetrisch bestimmt. Diese Art der Durchführung kann auch bei größeren Kaliummengen angewendet werden und verkürzt das kürzlich beschriebene Verfahren der Verfasser. Die Methode erwies sich als geeignet für die Kaliumbestimmung in Blutserum.
    Abstract: Résumé On peut doser le potassium dans le domaine 0,1–2,0 mg par précipitation du duodéciphosphomolybdate. La précipitation de si petites quantités est déclanchée par évaporation de l'excès de réactif jusqu' à ce que la cristallisation commence. Après filtration, on dose le précipité par acidimétrie. Cette modification peut aussi s'appliquer à de plus grandes quantités de potassium et elle abrège la méthode précédemment décrite. La méthode paraît s'appliquer au dosage du potassium dans le sérum sanguin.
    Notes: Summary Potassium can be determined in the range 0.1–2.0 mg by precipitation as the 12-phosphomolybdate. The precipitation of these small amounts is promoted by evaporating the excess reagent until crystallisation begins. After filtration the precipitate is determined alkalimetrically. This modification can also be applied to larger amounts of potassium and shortens the method described previously. The method appears to be suitable for the determination of potassium in blood serum.
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 172 (1953), S. 672-673 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Cells of P. salinaria were harvested from a three-day culture grown on the medium devised [by Katznelson and Lochhead2 but modified to contain glycerol as the carbohydrate addition. Cells were washed once with 0 -025 M phosphate buffer, pH. 8 -0, containing 15 per cent sodium chloride. Since intact ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 33-33 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Hitherto the known specimens of this form comprised only the almost complete mandible containing five molars, P3 belonging to the left side of the same mandible and the proximal end of a radius. The teeth are small compared to the P. crassidens homo-logues-especially Mx. The length and breadth ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 169 (1952), S. 713-714 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The total concentration of base in the water in the cells was calculated on the assumption that 26 per cent of the weight of the slices consisted of extracellular fluid having the same ionic composition as the external medium. The accompanying table shows these figures, and also, for comparison, ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 453-454 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Three such reactions are (I) the nuclear chlorination of phenolic ethers1, (II) the benzoylation of anilines2, and (HI) the alkaline hydrolysis of ethyl benzoates8. Hitherto, in both the benzoylation of anilines and the hydrolysis of ethyl benzoates, investigations have been confined to the study ...
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 262-263 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a recently published essay1, Prof. S. Zuckerman has discussed at some length the evolutionary position of the australopithecines under the three headings of evidence relating to: (1) the brain, (2) the face and teeth, and (3) upright posture. The first two sections are dismissed after very brief ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 443-443 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A. H. Schultz has recently shown1 that in all manlike apes and in the majority of monkeys the sequence of eruption is very definite (brackets show variation): M19 A, J2, M2, (P, P), (Ms, C). The premolars are variable, and M3 and C may vary in order. But the 2nd molar is always the fourth tooth ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 989-990 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] No. of expts. Respiratiμ*l./mgm./hr.) on ± S.D. Total wa % tissue ter ±S.D. Normal medium + Af/200 cyanide + 10-M 2,4-dini-trophenol 44813 4.20.44.6 0.40.150.5 77.584.282.6 0.80.91.0 In recent experiments, 10-4 M 2,4-dinitrophenol was added to the isotonic medium in ...
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