Results 241 to 250 of about 39,347 (283)
Some of the next articles are maybe not open access.
The effect of thiosulfate-oxidizing bacteria on the stability of the gold-thiosulfate complex
Geochimica et Cosmochimica Acta, 2005An Acidithiobacillus thiooxidans spp., isolated from the Driefontein Consolidated Gold Mine, Witwatersrand Basin, Republic of South Africa was able to precipitate gold from Au(S2O3)23− in the presence of up to 0.26 mM gold. In chemical control experiments and with the presence of dead bacteria, gold was not precipitated under similar experimental ...
Lengke, MF, Southam, G
openaire +3 more sources
Stain Technology, 1961
Na2S2O3 and HCl can be used as the reducing system to make Schiff reagent, the sulfur produced by the reaction acting as the adsorbent and consequently eliminating the need of decolorizing charcoal. To 100 ml of a 0.02% solution of basic fuchsin add 8 gm of dry Na2S2O3 shake for 3 min, add 0.5 ml of cone. HCl (final concentration 0.05 N).
openaire +3 more sources
Na2S2O3 and HCl can be used as the reducing system to make Schiff reagent, the sulfur produced by the reaction acting as the adsorbent and consequently eliminating the need of decolorizing charcoal. To 100 ml of a 0.02% solution of basic fuchsin add 8 gm of dry Na2S2O3 shake for 3 min, add 0.5 ml of cone. HCl (final concentration 0.05 N).
openaire +3 more sources
Journal of Chemical Education, 1990
The reactions of thiosulfate make impressive lecture demonstrations and worthwhile laboratory experiments.
openaire +2 more sources
The reactions of thiosulfate make impressive lecture demonstrations and worthwhile laboratory experiments.
openaire +2 more sources
On the molecular weight of thiosulfate sulfurtransferase
Biochimica et Biophysica Acta (BBA) - Protein Structure, 1975Bovine liver thiosulfate sulfurtransferase (rhodanese) (EC 2.8.1.1) HAS BEEN REPORTED TO EXIST IN SOLUTION IN A RAPID, PH-dependent equilibrium between monomeric and dimeric forms of molecular weights 18 500 and 37 000 (Volini, M., DeToma, F. and Westley, J. (1967), J. Biol. Chem. 242, 5220).
Clare Woodward, Lynda M. Ellis
openaire +3 more sources
1987
Publisher Summary This chapter discusses about the determination of thiocyanate and thiosulfate. Several methods are used for the analytical determination of inorganic thiocyanate. These include procedures based on the formation of colored complexes, either with ferric ions or with cupric ions and pyridine, or on oxidation with bromine followed by ...
openaire +3 more sources
Publisher Summary This chapter discusses about the determination of thiocyanate and thiosulfate. Several methods are used for the analytical determination of inorganic thiocyanate. These include procedures based on the formation of colored complexes, either with ferric ions or with cupric ions and pyridine, or on oxidation with bromine followed by ...
openaire +3 more sources
Russian Journal of Coordination Chemistry, 2008
The electronic structure of the thiosulfate ions was determined, which made it possible to predict and confirm experimentally for the first time the nature of their 33S NMR spectra containing two signals of functionally different sulfur atoms. The results of NMR study on different nuclei and the EPR data indicated that the thiosulfate ions as ...
S. V. Zimina +2 more
openaire +2 more sources
The electronic structure of the thiosulfate ions was determined, which made it possible to predict and confirm experimentally for the first time the nature of their 33S NMR spectra containing two signals of functionally different sulfur atoms. The results of NMR study on different nuclei and the EPR data indicated that the thiosulfate ions as ...
S. V. Zimina +2 more
openaire +2 more sources
Environmental Microbiology, 2019
Sulfur oxidizing Sulfurimonas spp. are widespread in sediments, hydrothermal vent fields, aquifers, and subsurface environments such as oil reservoirs where they play an important role in the sulfur cycle.
S. Lahme +6 more
semanticscholar +1 more source
Sulfur oxidizing Sulfurimonas spp. are widespread in sediments, hydrothermal vent fields, aquifers, and subsurface environments such as oil reservoirs where they play an important role in the sulfur cycle.
S. Lahme +6 more
semanticscholar +1 more source
Metabolism of Thiosulfate in Chlorobium
1988Thirty-five years ago, Helge Larsen (1952) described the first isolation of a thiosutfate-utilizing Chlorobium which he named Chlorobium thiosulfatophilum. It differed from Chlorobium limicola (Nadson, 1906) just by this one property.
C. Lorenz +3 more
openaire +2 more sources
A colorimetric method for the determination of thiosulfate
Biochimica et Biophysica Acta, 1957A colorimetric procedure for the determination of thiosulfate in concentration as low as 1.10−5M is described. This method is based on the conversion of thiosulfate to thiocyanate in the presence of cyanide and cupric ions, followed by determination of thiocyanate as the iron complex.
openaire +3 more sources
Canadian Journal of Biochemistry, 1970
Thiosulfate-oxidizing enzyme was purified from Thiobacillus thioparus extracts 120- to 160-fold and the properties were studied. The enzyme had a molecular weight of 115 000 and contained 2 moles of non-heme iron. Ferricyanide was a much better electron acceptor than cytochrome c, but with cytochrome c the Km for thiosulfate was lowered from 0.1 mM to
Isamu Suzuki, Ronald M. Lyric
openaire +3 more sources
Thiosulfate-oxidizing enzyme was purified from Thiobacillus thioparus extracts 120- to 160-fold and the properties were studied. The enzyme had a molecular weight of 115 000 and contained 2 moles of non-heme iron. Ferricyanide was a much better electron acceptor than cytochrome c, but with cytochrome c the Km for thiosulfate was lowered from 0.1 mM to
Isamu Suzuki, Ronald M. Lyric
openaire +3 more sources