Titanium dioxide is a very attractive material in catalysis. Although the titanium exhibits superior proper-ties ultra violet radiation, activity of catalyst can be improved by some modifications specially for daylight radiation. was colored thermal decomposition sodium borohydride at 400 0C. The gray nanotube-titanium obtained where molar ratio to borohydride, 1.2 and 0.6. black prepared makin...

Large colloidal environmentally stable silica-coated cobalt particles were synthesized by combining the sodium borohydride reduction in aqueous solution and the Stöber method. Low size polydisperse cobalt spheres with an average size of 95 nm were synthesized by using a borohydride reduction method and were subsequently coated with a thin layer of silica by means of hydrolysis and condensation ...

In the crystal structure of the title compound, C(4)H(12)N(+)·BH(4) (-), the tetra-methyl-ammonium cations are situated on special positions with site symmetry [Formula: see text]m2. The borohydride anions are situated on special positions with 4mm site symmetry and show rotational disorder around the fourfold axis.

Soybean trypsin inhibitor could be partially reduced by treatment with 0.25 M sodium borohydride at 0” without loss of inhibitory activity toward trypsin. From the number of --SH groups released and the carboxymethylcysteine content of the carboxymethylated derivative, it was evident that two -SH groups had been produced under these conditions. A comparison of the diagonal electrophoretic maps ...

Materials. Ethylbromoacetate (97%), potassium carbonate (99%), diethyl ether (99.8%), ethylenediamine (99%), dichloromethane (99.6%), sodium triacetoxyborohydride (97%), sodium borohydride (98%), propionaldehyde (97%), poly(ethylene glycol) methyl ether thiol (PEG-SH, average mw 2000), formic acid (96%), formaldehyde (37% wt in H2O), sodium hydroxide(97%), propionaldehyde (97%), trifluoroacetic...

The specificity of a GC/MS assay of morphine and codeine was examined with particular regard to the potential interference due to hydromorphone and hydrocodone, compounds that cross-react extensively in opiate screening tests. A GC/MS method with solid-phase extraction and acetylation or trimethylsilylation was used. The equilibrium between keto and enol forms of the potential interferents was ...