ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] A high-pressure mercury lamp with appropriate filters (2 mm. Jena WG 7 + 10 mm. NiSO4.6H2O, 500 gm./l.) served as source of light at the lower intensities. To obtain different intensities, working distances of about 10, 12, 35, 40 and 140 cm. were used with exposure times varying from J min. up to ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/180992a0
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