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  • Nature Publishing Group  (3)
  • EDP Sciences
  • 1940-1944  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Determination of Ascorbic Acid in the Presence of Sulphur Dioxide (1943)
    [s.l.] : Nature Publishing Group
    Nature 152 (1943), S. 599-599 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN an equal volume of 3 per cent hydrogen peroxide is added to a slightly acidified ascorbic acid solution, no appreciable effect on the indophenol titration value is observed, unless iron or copper salts are present. The end-point is a permanent pink colour deepening very slowly on standing. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/152599c0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Vitamin C Content of Fresh, Canned and Dried Guavas (1941)
    [s.l.] : Nature Publishing Group
    Nature 148 (1941), S. 286-286 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE common guava, Psidium guajava, has not as yet received the recognition which it deserves as a potent source of ascorbic acid. Both in Hawaii1 and in India2, values as high as 300 mgm. per 100 gm. have been reported for the fresh fruit, although many lower ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/148286a0
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  • 3
    Electronic Resource
    Electronic Resource
    A Specific Reaction for Ascorbic Acid (1943)
    [s.l.] : Nature Publishing Group
    Nature 152 (1943), S. 693-693 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ON adding hydrochloric acid to a solution of ascorbic acid, reversible oxidation with 2: 6-dichloro-phenolindophenol and iodine becomes progressively slower as the mineral acid content increases. When the hydrochloric acid concentration reaches 20 percent in the case of indophenol and 29 per ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/152693a0
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    Paper (German National Licenses)
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