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Informational spectrum method applied to the investigation of the enzymatic activity of different alpha amylases / Primena metode informacionih spektara u ispitivanju enzimatskih različitih alfa amilaza
(Serbian Chemical Society / Srpsko hemijsko društvo, 1991)
A series of eight alpha amylases (EC 3.2.1.1) of known primary structure were investigated using the Informational Spectrum Method (ISM) for the purpose of predicting new enzymes with increased efficiency.
Depolarization end point can glassy carbon electrodes: Microscale coulometry of thioglycollic acid
(Wiley, 1991)
An externally unpolarized twin couple of glassy carbon electrodes, undergoing different pretreatments, and connected to nothing but a recorder, was engaged for simple and fast end‐point detection of electrometric titrations ...
Structural effects in electrocatalysis. Oxidation of D-glucose on single crystal platinum electrodes in alkaline solution
(Elsevier, 1991)
Electrochemical oxidation of D-glucose has been studied in 0.1 M NaOH on single crystal platinum electrodes with thirteen different orientations. The reaction rate depends strongly on the crystallographic orientation of ...
ALSV investigation of the phase composition of electrolytic Cu + Sn alloys
(Elsevier, 1991)
Anodic linear sweep voltammograms (ALSVs) have been recorded for thin layers of Cu + Sn alloys electrochemically deposited on graphite from a pyrophosphate bath. Three characteristic peaks were found. The first peak, ...
Hexaene H-85, a hexaene macrolide complex
(Switzerland : Springer Nature, 1991)
The hexaene macrolide antibiotics constitute the smallest group of the polyenes (12 ~ 15). Mediocidin, endomycin, hexaene H-85 and hexafungin each have a significant tetraene spectrum in addition to a hexaene spectrum ...
Oxygen reduction on iron-IV. The reduction of hydrogen peroxide as the intermediate in oxygen reduction reaction in alkaline solutions
(Elsevier, 1991)
The kinetics of hydrogen peroxide reduction were studied on iron in borate buffered and unbuffered solutions of pH ranging from 8.6 to 13.8, with and without the presence of chloride ions. A rotating disk electrode was ...
Electrodeposition of silver powder by pulsating and reversing currents
(Springer Nature Switzerland AG 2020, 1991)
The effect of the shape of the current wave and frequency in silver deposition by pulsating and reversing currents on the morphology of powder particles were investigated. The possibility of obtaining particles with different ...
Formation of allenes by reaction of 1,4-dibromobut-2-ene with dialkyl ketones and base
(Royal Society of Chemistry, 1991)
By reaction of 1,4-dibromo-(E)-but-2-ene with dialkyl ketones and sodium hydride the allenic ketones 3 were obtained as the main products, in addition to the symmetrical unsaturated 1,8-diketones 4.
Oxidation of carbon monoxide over Cu1-xCrxCo2O4 in the presence of sulfur oxides
(Springer, 1991)
Carbon monoxide oxidation activity and aging of Cu1-xCrxCo2O4 (0<x<1) spinels in the presence of sulfur oxides have been studied. The results obtained indicate that the sulfur tolerance is related to the presence of ...
Non-sensitized photooxygenation of some steroidal isoxazolidines
(Pergamon press, 1991)
UV irradiation of the steroidal isoxazolidines 2a, 2b, and 2c in various solvents in the presence of molecular oxygen, results in oxidative cleavage of the epoxyimino bridge to give several products; the N-unsubstituted ...