Square-wave adsorptive voltammetry of dexamethasone: Redox mechanism, kinetic properties, and electroanalytical determinations in multicomponent formulations

2011 ◽  
Vol 413 (2) ◽  
pp. 148-156 ◽  
Author(s):  
Thiago Mielle B.F. Oliveira ◽  
Francisco Wirley P. Ribeiro ◽  
Janete E.S. Soares ◽  
Pedro de Lima-Neto ◽  
Adriana N. Correia
Keyword(s):  
Kinetic Properties ◽  
Redox Mechanism ◽  
Square Wave ◽  
Adsorptive Voltammetry

Electroanalytical Determination of Promethazine Hydrochloride in Pharmaceutical Formulations on Highly Boron-Doped Diamond Electrodes Using Square-Wave Adsorptive Voltammetry

2008 ◽  
Vol 20 (18) ◽  
pp. 2031-2039 ◽  
Author(s):  
Francisco Wirley P. Ribeiro ◽  
Amanda S. Cardoso ◽  
Rafael R. Portela ◽  
Janete E. S. Lima ◽  
Sergio A. S. Machado ◽  
...  
Keyword(s):  
Pharmaceutical Formulations ◽  
Diamond Electrodes ◽  
Boron Doped Diamond ◽  
Square Wave ◽  
Boron Doped ◽  
Promethazine Hydrochloride ◽  
Adsorptive Voltammetry

Determination of moxifloxacin in tablets and human urine by square-wave adsorptive voltammetry

2005 ◽  
Vol 81 (2) ◽  
pp. 209-216 ◽  
Author(s):  
Magno Aparecido G. Trindade ◽  
Glaucia Maria da Silva ◽  
Valdir Souza Ferreira
Keyword(s):  
Human Urine ◽  
Square Wave ◽  
Adsorptive Voltammetry

Chromatographic Isolation of the LDH-Isoenzymes of Human Blood Platelets and an Investigation of Their Enzyme Kinetics

1968 ◽  
Vol 20 (03/04) ◽  
pp. 301-313 ◽  
Author(s):  
W Schneider ◽  
K Schumacher ◽  
B Thiede ◽  
R Gross
Keyword(s):  
Human Blood ◽  
Blood Platelets ◽  
Deae Cellulose ◽  
Order Reaction ◽  
Kinetic Properties ◽  
Ldh Isoenzymes ◽  
Kinetic Investigations ◽  
Substrate Concentrations ◽  
Chromatographic Isolation ◽  
Human Blood Platelets

SummaryThe LDH-isoenzymes of human blood platelets show a distinct predominance of the isoenzymes 2 and 3 upon chromatography on DEAE-cellulose. Small amounts of LDH-1 are also present, while only traces of LDH-4 and -5 can be detected.Enzyme kinetic investigations of the principal isoenzymes LDH-1, -2 and -3 clearly show that the differences in inhibition constants with pyruvate as substrate which are demonstrable at 25° largely disappear at 37°. On the other hand, the differences among the isoenzymes in their affinity for pyruvate and lactate as substrate as well as in with respect to the optimal substrate concentrations of pyruvate are more marked at 37° than at 25°. Also, the type of inhibition found with lactate as substrate is increasingly the expression of a higher order reaction in going from LDH-1 to LDH-3. A dependence of the LDH distribution pattern upon the metabolism of the cell is discussed. A comparison of our results with thrombocytes with those of other workers with erythrocytes and leucocytes makes it unlikely that the LDH pattern is directly dependent upon the existence of an oxidative metabolism. Rather, the redox potential of the cell could be of importance for the nature of the pattern of isoenzymes and for their differing kinetic properties.

Square Wave Jerks

2005 ◽  
Vol 222 (S 3) ◽  
Author(s):  
K Hassan ◽  
K Bornemann ◽  
R Effert
Keyword(s):  
Square Wave

Partial Discharge Activity of Inter-turn Insulation under Different Parameters of Square Wave Voltage

2009 ◽  
Vol 129 (12) ◽  
pp. 922-930 ◽  
Author(s):  
Kai Zhou ◽  
Guangning Wu ◽  
Xiaoxia Guo ◽  
Liren Zhou ◽  
Tao Zhang
Keyword(s):  
Partial Discharge ◽  
Square Wave ◽  
Discharge Activity ◽  
Turn Insulation

Effect of CeO$lt;inf$gt;2$lt;/inf$gt;-based Solid Solutions on Hydrogen Storage Kinetic Properties of Mg$lt;inf$gt;2$lt;/inf$gt;Ni Alloy

2014 ◽  
Vol 29 (12) ◽  
pp. 1241
Author(s):  
ZHANG Guo-Fang ◽  
ZHANG Yang-Huan ◽  
LIU Zhuo-Cheng ◽  
XU Jian-Yi ◽  
ZHANG Yin
Keyword(s):  
Hydrogen Storage ◽  
Solid Solutions ◽  
Kinetic Properties ◽  
Ni Alloy

Thermal Decomposition Kinetics of Torrefied Oil Palm Empty Fruit Bunch Briquettes

2016 ◽  
Vol 10 (3) ◽  
pp. 325-328 ◽  
Author(s):  
Bemgba Nyakuma ◽  
◽  
Arshad Ahmad ◽  
Anwar Johari ◽  
Tuan Abdullah ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Oil Palm ◽  
Decomposition Kinetics ◽  
Thermal Decomposition Kinetics ◽  
Kinetic Properties ◽  
Tg Analysis ◽  
Empty Fruit Bunches ◽  
Thermal Lag ◽  
Profile Characteristics ◽  
Kinetics Of

The study is aimed at investigating the thermal behavior and decomposition kinetics of torrefied oil palm empty fruit bunches (OPEFB) briquettes using a thermogravimetric (TG) analysis and the Coats-Redfern model. The results revealed that thermal decomposition kinetics of OPEFB and torrefied OPEFB briquettes is significantly influenced by the severity of torrefaction temperature. Furthermore, the temperature profile characteristics; Tonset, Tpeak, and Tend increased consistently due to the thermal lag observed during TG analysis. In addition, the torrefied OPEFB briquettes were observed to possess superior thermal and kinetic properties over the untorrefied OPEFB briquettes. It can be inferred that torrefaction improves the fuel properties of pelletized OPEFB for potential utilization in bioenergy conversion systems.

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