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Spectrophotometric Determination of Hydrogen Peroxide by a Hydroquinone-Aniline System Catalyzed by Molybdate
(
Korean Chemical Society
, 2004 , Article)
In this system hydroquinone is oxidized to pbenzoquinone by H2O2. 2 aniline are added, in successive stages, to pbenzoquinone, to yield the disubstituted quinone as the final product. 20 The UV-VIS spectrum of the product ...
Novel biomedical sensors for flow injection potentiometric determination of creatinine in human serum
(
Wiley-VCH Verlag
, 2005 , Article)
Coated-wire (CW) and tubular (Tu) type membrane sensors for creatinine are developed. These consist of creatinine tungstophosphate(CTP), creatinine molybdophosphate (CMP) and creatinine picrolonate (CPC) ion-pair complexes ...
Novel potentiometric copper (II) selective membrane sensors based on cyclic tetrapeptide derivatives as neutral ionophores
(
Elsevier
, 2005 , Article)
Two novel membrane sensors sensitive and reasonably selective for Cu2+ ions are described. These are based on the use of newly synthesized cyclic tetrapeptide derivatives as neutral ionophores and sodium tetraphenylborate ...
Novel thorium membrane sensors with anionic response based on trioctylphosphine oxide and toluate ionophores
(
Wiley-VCH Verlag
, 2008 , Article)
Two novel potentiometric polymeric membrane sensors for rapid and accurate determination of thorium are described. These are based on the use of trioctylphosphine oxide (TOPO) and thorium toluate (Th-TA) as ionophores ...
Continuous potentiometric monitoring of viagra (sildenafil) in pharmaceutical preparations using novel membrane sensors
(
Springer Nature
, 2006 , Article)
Two potentiometric sensors responsive to sildenafil citrate (SC) drug (the active component of viagra) are described, characterized, compared and used for drug assessment. The sensors are based on the use of the ion-association ...
Text Summarization Based on Conceptual Data Classification
(
IGI Global
, 2006 , Article)
In this article, we present an original approach for text summarization using conceptual data classification. We show how a given text can be summarized without losing meaningful knowledge and without using any semantic ...
Improvement of the DSATUR algorithm for graph coloring
(
Arabian Gulf University
, 2003 , Article)
In this paper we discuss the deterministic Brelaz's DSATUR algorithm for graph coloring. We propose a simple modification that improves the performance of the algorithm. This modification consists of assigning the color ...
Effect of octylphenol polyethylene oxide on the corrosion inhibition of steel in 0.5 M H2SO4
(
Elsevier
, 2004 , Article)
A non-ionic surfactant, octylphenol polyethylene oxide (OPPEO), was evaluated as an inhibitor for corrosion of low-carbon steel in 0.5M H 2SO4. Potentiodynamic and potentiostatic methods and scanning electron microscopy ...
Activation and stabilization of gallium arsenide anode in an aqueous photoelectrochemical cell
(
Elsevier
, 2003 , Article)
The formation of a porous layer on the surface of gallium arsenide anode, n-GaAs, increases photogenerated currents significantly. This layer was formed as a result of an anodic polarization of illuminated n-GaAs in acidified ...
The role of type II FB (I):Tl+ defect in laser light generation and color image formation at the low coordination surface sites of AgBr: Ab initio calculations
(
Elsevier
, 2006 , Article)
The role of type II FB (I):Tl+ color center at low coordination surface sites of AgBr thin films in providing tunable laser activity and photographic sensitization is examined. The double-well potential at this site is ...