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Pyrocatechol violet as a colorimetric reagent for the estimation of molybdenum, vanadium and tungsten

✍ Scribed by A. K. Majumdar; C. P. Savariar


Publisher
Springer
Year
1958
Tongue
English
Weight
140 KB
Volume
45
Category
Article
ISSN
0028-1042

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## Abstract A tungstate‐resistant mutant of Nostoc muscorum was isolated with severely defective molybdate transport activity. It did not show nitrogenase activity or nitrate reductase activity in the presence or absence of Mo, but expressed both activities in the presence of vanadyl sulphate. V‐de