Now showing items 181-190 of 233
Determination of metal cyanide and thiocyanate complexes by kjeldahl-gunning and carius sealed tube digestion methods
(Elsevier, 1960)
Small amounts of metal cyanide and thiocyanate complexes can be determined using either the Kjeldahl-Gunning or Carius sealed tube digestion method. The results obtained by the Kjeldahl-Gunning method are somewhat low and ...
Chemical synthesis of p-nitrophenyl [beta]-sophoroside and p-nitrophenyl [beta]-laminarabioside
(Elsevier, 1969-10)
Condensation of tetra-O-acetyl-[alpha]--glucopyranosyl bromide with p-nitrophenyl 4,6-O-benzylidene-[beta]--glucopyranoside followed by appropriate deblocking reactions gives rise to an approximately equimolar mixture of ...
Concerning the molecular weight, shape, and size of polyglucose isolated from HeLa cells
(Elsevier, 1966-01-04)
Light-scattering measurements were made on a preparation of polyglucose isolated from HeLa cells. The molecular weight was determined, from a Zimm plot of the data, to be 4.6[middle dot]106. The character of the angular ...
Immunochemical studies with citrate-condensing enzyme
(Elsevier, 1963)
Anti-enzyme to citrate-condensing enzyme from pig heart was prepared in rabbits. The interaction of the enzyme and anti-enzyme was not dependent on pH between 6.3 and 8.9 nor was it dependent on temperature at 0[deg] or ...
Low temperature infrared spectra of polyglycines and C—H ... O[bouble bond]C hydrogen bonding in polyglycine II
(Wiley Subscription Services, Inc., A Wiley Company, 1968-03)
Infrared spectra of polyglycines I and II obtained at −170°C. have been compared with those obtained at room temperature. The changes in frequency of some of the C—H stretching bands are consistent with the earlier suggestion ...
Phosphorylation of nuclear proteins in avian erythrocytes
(Elsevier, 1969-12-23)
Changes in nuclear phosphoproteins have been followed during the course of development of the avian erythrocyte. Both young reticulocytes and mature erythrocytes are capable of incorporating 32P1 into nuclear proteins, the ...
Stereochemical criteria for polypeptides and proteins. V. Conformation of a system of three linked peptide units Contribution No. 236 from the Center of Advanced Study in Physics, University of Madras, India.
(Wiley Subscription Services, Inc., A Wiley Company, 1968-10)
The general conformations of a system of three linked peptide units are studied, and it is found that there are three types of conformations which contain NH…O hydrogen bonding between the first and the third units. One ...