ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] We have found that a further twofold increase in activity may be achieved by dissolving the purified substance to a 1 per cent solution in absolute methanol, adjusting the pH. to 7-0 and allowing to stand at - 80? C. for a couple of days. An ash-free fraction, comprising about nine-tenths of the ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/172124a0
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