utility of redox reaction for simple spectrophotometric method for the determination of desloratadine in dosage formsMai Aish
5. Presence of a catalyst because lowers Activation or start up Energy for the reaction. ex. The body’s enzymes 6. Temperature because if T goes up then K.E. goes up; therefore each collision has more energy i.e. “has more punch”. ...
In the present work, it is found experimentally that peroxyl radical produced by Fenton-like reagent oxidized Rhodamine 6G(Rh6G), causing the,uorescence quenching of Rh6G; the addition of trace BPA has an inhibitory effect on the redox reaction.Based on this observation,an inhibitory kinetic,u...
Similar mechanism, involving sulfenic acid intermediate, has been demonstrated for disulfide bonding of cysteins exposed to O2of air in the presence of trace metals37. The energy barrier of reaction (2.2) has been evaluated by Kassimet al. for methanesulfenic acid and methanethiolate (blue profile...
A particularly good definition for the subject of this paper can be found in a dictionary such as “Merriam Webster's Collegiate Dictionary” [1]: CHAOS 1 obs: Chasm, Abyss2 a often cap: a state of things in which chance is supreme; esp: the confused unorganized state of primordial matte...
The cor- rect length of an SP pulse follows (theoretically) from the definition of an SP pulse. An SP pulse should be neutral and not affect the subsequent SP pulse. This means in practice that an SP pulse should be long enough to reach FM or FMʹ, but it should not induce non-...
As a dimensionless quantity derived from unit-less counts, oxidation state needs a concept [42], a verbal explanatory definition and a heuristic algorithm to calculate its value [43]. The definition [43] states: “The oxidation state of an atom is the charge of this atom after ionic approxim...
andEadsorbateis the total energy of the free adsorbates. Isolated adsorbates were calculated in a 20 × 20 × 20 Å3periodic box. According to this definition, a larger negativeEadsvalue indicates higher stability. Since the electrostatic interaction energy was very large, any starting...
Anson, F. C., and Rodgers, R. S. (1973) Electrode kinetics for a simple redox reaction with adsorbed reactant: The reduction of Cr(OH2)3(NCS)3 at mercury electrodes, J. Electroanal. Chem. and Interfacial Electrochem. 47, 287-309....
The reaction mixture exhibited maximum absorbance at 557 nm. The calibration graph is found to be linear over 14.0-28.0 渭g ml~(-1) with molar absorptivity of 3.00 x 10~4 1 mol~(-1) cm~(-1) and the Sandell sensitivity of 0.0135 渭g ml~(-1). The optimum reaction condition and ...