Now showing items 761-770 of 775
The soluble components of chromaffin granules a carbon-13 NMR survey
(Elsevier, 1980-07-03)
Carbon-13 NMR spectra of the reconcentrated chromaffin granule lysate have been obtained at 50 MHz and 62.9 MHz. The spectrum contains a number of assignable resonances in addition to those of the main soluble components ...
Gas chromatographic determination of gallopamil and norgallopamil in human plasma
(Elsevier, 1989)
A highly sensitive gas chromatographic assay is described for the simultaneous determination of gallopamil, a calcium channel blocking agent, and its major metabolite, norgallopamil. A multi-step extraction procedure is ...
Thermodynamics of copper sulfides I. Heat capacity and thermodynamic properties of copper(I) sulfide, Cu2S, from 5 to 950 K
(Elsevier, 1987-11)
The heat capacity of Cu2S from 5 to 950 K was determined by adiabatic-shield calorimetry and the thermodynamic properties were evaluated. Transitions occur at 376 and about 710 K with [Delta]trsSm = (1.240+/-0.006)R and ...
Sulfite-sensitive solvent/polymeric-membrane electrode based on bis(diethyldithiocarbamato)mercury(II)
(Elsevier, 1989)
A new solvent/polymeric-membrane electrode which exhibits significant potentiometric response toward sulfite ion in the 1 x 10-6-1 x 10-3 M range is described. The membrane is prepared by incorporation of neutral ...
Characterization of cytosolic forms of CTP: choline-phosphate cytidylyltransferase in lung, isolated alveolar type II cells, A549 cell and Hep G2 cells
(Elsevier, 1989-12-18)
The subcellular forms of cytidylyltransferase (EC 2.7.7.15) in rat lung, rat liver, Hep G2 cells, A549 cells and alveolar Type II cells from adult rats were separated by glycerol density centrifugation. Cytosol prepared ...
Assay and properties of the enzyme catalyzing the biosynthesis of 1-O-alkyl dihydroxyacetone 3-phosphate
(Elsevier, 1981-10-01)
The properties of the enzyme alkyl dihydroxyacetone phosphate synthase (1-O-acyl dihydroxyacetone 3-phosphate + ROH --> 1-O-alkyl dihydroxyacetone 3-phosphate + fatty acid) in Ehrlich ascites tumor cell microsomes were ...
Are cationic [eta]3-allyl complexes general precursors to metallacyclobutanes? Synthesis and structure of [mu]-chloro-bis[([eta]3-allyl)-2,2'-bipyridyldicarbonylmolybdenum(II)] tetrafluoroborate
(Elsevier, 1984-08-28)
Silver tetrafluoroborate reacts with Cl(bipy)(CO)2([eta]3-C3H5)Mo in CH2Cl2 to give the dimeric cation, ([mu]-Cl)[(bipy)(CO)2([eta]3-C3H5)Mo]2+, isolated as the crystalline BF4- salt with CH2Cl2 of solvation (5). Complex ...
Expert system for interpretation of the infrared spectra of environmental mixtures
(Elsevier, 1988)
A program for the identification of the principal components of mixtures through interpretation of the infrared mixture spectrum (IntIRpret) was developed. This program, which was developed as a preliminary screening tool ...
1,4-Additions of the highly functionalized copper reagents RCu(CN)ZnI [middle dot] 2 BFP3 to trisubstituted enones. A new BF3 promoted cyclization reaction
(Elsevier, 1988)
The new copper reagents RCu(CN)Zn I [middle dot] 2 BF3 1 containing various functional groups like esters, cyanides, chlorides or enoates react with [beta], [beta]'- disubstituted enones to afford the Michael adducts 4-7 ...
Calcium compartmentation in isolated renal tubules in suspension
(Elsevier, 1988-04)
Substantial increases of total cell Ca2+ have been observed in suspensions of isolated rabbit proximal tubules subjected to hypoxic injury or treated with exogenous ATP followed by apparent recovery with reoxygenation of ...