ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Table 1. CHARACTERISTICS OF HUMIC ACIDS Sample Origin Extraction No. Purifying procedure Elementary analysis (per cent) C H N ash 1 Podzol 0-5 normal Precipitation, 2 soil Black sodium hydroxide after centrifugation, dialysis 40-32 4-12 3-43 7.9 soil decalcitation 41-59 4-26 2-15 10-1 with ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/213902a0
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