Now showing items 241-250 of 294
Enzymatic determination of cardiac glycosides
(Elsevier, 1971-08)
A specific and highly sensitive enzymatic method for the determination of cardiac glycosides has been developed. The method is based on the inhibition of the Na,K-ATPase in a microsomal preparation from beef cerebral cortex. ...
Hypostoichiometric titanium diboride (TiB1.964) and hyperstoichiometric tantalum diboride (TaB2.11): the heat capacity and thermodynamic properties from 5 to 350 K
(Elsevier, 1978-07)
Heat capacities of TiB2 and TaB2.11 have been measured by adiabatic cryogenic calorimetry and found to have an essentially normal sigmate temperature dependence without thermal anomalies. Values at 298.15 K of the heat ...
Properties of spinach ferredoxin in anaerobic urea solution: A comparison with the native protein
(Elsevier, 1970-12)
The preparation of spinach ferredoxin by a modification of the method of Keresztes-Nagy and Margoliash which is particularly convenient for large-scale operation is described.The optical, CD, and EPR spectra of this protein ...
Hydrogen peroxide formation and stoichiometry of hydroxylation reactions catalyzed by highly purified liver microsomal cytochrome P-450
(Elsevier, 1977-04-30)
The stoichiometry of hydroxylation reactions catalyzed by cytochrome P-450 was studied in a reconstituted enzyme system containing the highly purified cytochrome from phenobarbital-induced rabbit liver microsomes. Hydrogen ...
Synthesis and reactivity of some t-butyl-disilanes and -digermanes
(Elsevier, 1976-02-24)
Efficient methods of coupling R2EHCl (R = Me, t-Bu; E = Si, Ge) to give R2HEEHR2 have been developed. These dihydrides are readily halogenated with Br2 or I2 to give the corresponding 1,2-dihalo-disilane or -digermane. ...
The Crystal and Molecular Structure of Bis(cyclopentadienyldicarbonylchromium) (Cr[triple bond]Cr)
(Elsevier, 1978-07-25)
The crystal structure of bis(cyclopentadienyldicarbonyl-chromium) has been determined by x-ray diffraction. The compound crystalizes in the triclinic system, space group P (C1i, No. 2) with unit cell parameters: a, 7.829(3); ...
A new class of model glycolipids: Synthesis, characterization, and interaction with lectins
(Elsevier, 1979-06)
A method is described for preparing model glycolipids by linking aldobionic acids to an alkylamine through an amide bond. These compounds may be rapidly prepared in large quantities. The glycolipids precipitate specifically ...