Now showing items 1-10 of 24
Assignments of the n[pi]* singlet states of p-benzoquinone
(Elsevier, 1974-03-30)
The vapor phase fluorescence spectra of p-benzoquinone-h4 and d4 are reported and discussed in relation to the assignment of the low lying singlet states. The low temperature, polarized single crystal electronic absorption ...
Separation of bile acids from neutral lipids on thin-layer chromatograms
(Elsevier, 1974-11-13)
Structural studies of capsular polysaccharide of type XII diplococcus pneumoniae
(Elsevier, 1974-10)
The capsular polysaccharide of Diplococcus pneumoniae Type XII contains residues of -glucose and -galactose in a molar ratio of 2:1. The methylated polysaccharide yielded upon hydrolysis 2,3,4,6-tetra- and 3,4,6-tri-O-me ...
Fluorescein isothiocyanates: Improved synthesis and purity : Spectral studies
(Elsevier, 1974-01)
Modification of the methods of synthesis by direct reaction of the isomeric aminofluoresceins with a limited excess of thiophosgene in the presence of calcium carbonate has yielded the 5- and 6-isothiocyanatofluoresceins ...
A two-step procedure for purification of papain from extract of papaya latex
(Elsevier, 1974-09)
A method is presented for purifying papain from extracts of papaya latex. The procedure involves precipitation of the extract of papaya latex with sodium chloride followed by affinity chromatography of the redissolved ...
The purification and properties of an alcohol dehydrogenase from mouse liver
(Elsevier, 1974-04)
1. 1. An alcohol dehydrogenase (alcohol: NAD oxidoreductase, EC ( [middle dot] [middle dot] ) was isolated from the supernatant fraction of mouse liver and purified 206-fold.2. 2. A number of aliphatic aldehydes, ranging ...
The ground state fundamentals of p-benzoquinone and p-benzoquinone-d4
(Elsevier, 1974-03-30)
The solid state infrared and Raman spectra of p-benzoquinone and several isotopic derivatives are reported and compared with the results of previous solution and vapor phase studies and with the results of previously ...
Spectroscopic studies of Lewis acid‐base complexes. III: Vibrational frequencies, assignments and normal coordinate analyses for isotopic varieties of phosphine borane and trifluorophosphine borane
(John Wiley & Sons, Ltd., 1974-04)
Vibrational spectra of the two Lewis complexes, phosphine borane, PH 3 BH 3 , and trifluoro‐phosphine borane, PF 3 BH 3 , have been investigated for several isotopic species preserving C 3 v symmetry. New assignments ...