Quarterly Journal of the Chemical Society of London |
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Page 2712
... chromatography travelled faster than the latter in the iso- propyl alcohol - ammonia - water system . Attempts to remove this impurity by fractional precipitation as either the ammonium or the barium salt or by adsorption on charcoal ...
... chromatography travelled faster than the latter in the iso- propyl alcohol - ammonia - water system . Attempts to remove this impurity by fractional precipitation as either the ammonium or the barium salt or by adsorption on charcoal ...
Page 2719
... chromatography . The enzyme preparation employed had strong phosphodiesterase activity since it was in use currently in the labor- atory for nucleoside preparation from deoxyribonucleic acids . EXPERIMENTAL Paper - chromatography of ...
... chromatography . The enzyme preparation employed had strong phosphodiesterase activity since it was in use currently in the labor- atory for nucleoside preparation from deoxyribonucleic acids . EXPERIMENTAL Paper - chromatography of ...
Page 3399
... Chromatography on Cellulose . Deter- mination of Tantalum and Niobium in Low - grade Phosphatic and Siliceous Ores . By R. A. MERCER and A. F. WILLIAMS . The chromatographic method of determination of tantalum and niobium ( J. , 1952 ...
... Chromatography on Cellulose . Deter- mination of Tantalum and Niobium in Low - grade Phosphatic and Siliceous Ores . By R. A. MERCER and A. F. WILLIAMS . The chromatographic method of determination of tantalum and niobium ( J. , 1952 ...
Contents
ONE HUNDRED AND ELEVENTH ANNUAL GENERAL MEETING | 2449 |
483 | 2465 |
Mechanism of Substitution at a Saturated Carbon Atom Part XXXIII Kinetic | 2488 |
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acetic acid acetone acetyl acetyl chloride added alcohol alum aluminium aluminium bromide Amer ammonia anhydride aqueous atom benzene benzyl boiling Calc carbon Chem Chemical Chemistry chloroform chromatography colourless compound concentrated condensation cooled crystallised crystals decomp derivative dilute dissolved distilled dried ester ethanol ether ethyl acetate ethylene evaporated excess extracted filtered filtrate formed Found fraction gave give heated hydrate hydrochloric acid hydrogen bromide hydrogen chloride hydrolysis iodide isolated ketone L-iditol Lecture light petroleum b. p. lignin lithium aluminium hydride m. p. and mixed material method methyl mixed m. p. mixture molecular molecules needles nitrate obtained oxide phase phosphate polymer potassium hydroxide precipitated prepared present Professor pyridine reaction reflux requires residue retinene room temperature salt sample separated sodium hydroxide solid solution solvent stirred structure Table trifluoroiodomethane vapour pressure vitamin washed yellow yield