Letter | Published:

Absorption Spectrum of Vitamin A at Low Temperatures

Nature volume 131, pages 582583 (22 April 1933) | Download Citation

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Abstract

WE have been trying to devise more precise physical criteria for the recognition of biologically important molecules. Obviously, the only ultimate test for such a molecule is its action on living organisms. Physical tests can, however, be used as a guide to decide whether it is worth while to apply biological tests.

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References

  1. 1.

    , and , J. Amer. Chem. Soc., 54, 5, 1713; 1932.

  2. 2.

    and , NATURE, 129, 720; 1932.

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Affiliations

  1. Physical Chemistry Laboratory, Cambridge. March 22.

    • F. P. BOWDEN
    • , S. D. D. MORRIS
    •  & C. P. SNOW

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DOI

https://doi.org/10.1038/131582c0

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