Now showing items 21-30 of 318
The polarography of aqueous pertechnetate ion
(Elsevier, 1967)
The polarographic reduction of pertechnetate in 4-0.01 M perchloric acid media takes place in two stages. The E of the more positive wave at +0.10 to -0.17 V S.C.E. is pH-dependent, E=0.06-0.106 pH. Coulometry indicates a ...
Determination of small amounts of zirconium--II : Analysis of refractory samples
(Elsevier, 1963-08)
In connection with the determination of small amounts of zirconium in complex samples, procedures have been developed for bringing various types of sample into solution and removing possible interferences, which procedures ...
Transport of amino acids in ehrlich ascites cells: Competitive stimulation
(Elsevier, 1967-09-09)
1. 1. The term `competitive stimulation' refers to an experimental finding in which the uptake of one amino acid is increased in the presence of another amino acid when both are initially present extracellularly. The uptake ...
The acid strength of the amino group as a factor in the transport of amino acids
(Elsevier, 1963)
1. 1. Halogen atoms have been introduced on the [beta]-carbons of amino acids in order to dissociate effects on pKa of the amino group on transport, from effects of the hydrophilic or hydrophobic character of the side ...
Hydrogenation of testosterone sulfate by the [Delta]4-3-ketosteroid reductase of rat liver microsomes
(Elsevier, 1965-01)
TPNH2 is oxidized in the presence of testosterone or testosterone sulfate and a microsomal preparation from the liver of female rats. In the presence of iorganic phosphate, DPNH2 also acts as a hydrogen donor. Evidence is ...
The emission of K-X-rays in slow neutron fission of 233U, 235U, and 239Pu
(Elsevier, 1969-10)
New chain conformations of poly(glutamic acid) and polylysine
(Wiley Subscription Services, Inc., A Wiley Company, 1968-09)
No Abstract.
Mixed ligand complexes of iron(ii) as nonaqueous acid-base and aqueous oxidation-reduction indicators
(Elsevier, 1962)
The neutral mixed ligand complexes dicyano-bis-(1,10-phenanthroline)-iron(II) and dicyano-bis-(2.2'-bipyridine)-iron(II) are suitable indicators for the titration of various weak bases in nonaqueous solvents, They also ...
Protein-carbohydrate interaction : III. Agar gel-diffusion studies on the interaction of concanavalin A, a lectin isolated from jack bean, with polysaccharides
(Elsevier, 1965-08)
Concanavalin A, a protein isolated from the jack bean (Canavalia ensiformis), has previously been shown to form a precipitate with glycogen and yeast mannan, and more recently with dextrans and amylopectin. Double-diffusion ...