2000
DOI: 10.1016/s0039-9140(00)00431-8
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Kinetic study and analytical applications of micellar catalyzed reactions of 1-fluoro-2,4-dinitrobenzene with inorganic thioanions using a fluoride-selective electrode

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Cited by 5 publications
(4 citation statements)
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“…The kinetics of reactions (2) were therefore studied by monitoring the increase in the concentration of the expelled fluoride ion by means of a potentiometric cell involving a fluoride ion selective electrode. 30,[41][42][43] All details pertaining to this potentiometric technique, that we have adapted for the investigation of relatively fast kinetic processes (t 1/2 ≈ 30 s), have been previously reported, together with examples of its successful application to various types of reactions. 41 These include preliminary experiments regarding the decomposition of DFP in 2-pyridiniumaldoximate (7) buffers.…”
Section: Kinetic Studiesmentioning
confidence: 99%
“…The kinetics of reactions (2) were therefore studied by monitoring the increase in the concentration of the expelled fluoride ion by means of a potentiometric cell involving a fluoride ion selective electrode. 30,[41][42][43] All details pertaining to this potentiometric technique, that we have adapted for the investigation of relatively fast kinetic processes (t 1/2 ≈ 30 s), have been previously reported, together with examples of its successful application to various types of reactions. 41 These include preliminary experiments regarding the decomposition of DFP in 2-pyridiniumaldoximate (7) buffers.…”
Section: Kinetic Studiesmentioning
confidence: 99%
“…The ability of fluoride-selective electrodes and bromide-selective electrodes to monitor fluoride and bromide ions liberated by some reactions has been employed successfully in kinetic methods for the determination of organic and inorganic compounds. [24][25][26][27][28][29][30][31] These methods are based on monitoring the reaction rate of these substrates with 1-fluoro-2,4-dinitrobenzene (FDNB) and Nbromosuccinimide (NBS) using fluoride-and bromide-selective electrodes. In this paper the chloride-selective electrode is used for monitoring chloride ions liberated by reactions of N-chlorosuccinimide (NCS) with hydrazine (HZ) and thiosemicarbazide (TSC).…”
Section: Introductionmentioning
confidence: 99%
“…O efeito da concentração dos reativos na pseudofase micelar permitiu a aplicação de um método cinético para a determinação de aminas, fenóis, tióis, hidrazinas, mediante sua reação com 1-flúor-2,4-dinitrobenzeno (FDNB), utilizando eletrodo seletivo para quantificar os íons fluoretos liberados (Gerakis et al, 2000). A presença do surfactante catiônico (CTAB) produziu um aumento de 16 vezes na velocidade de reação no caso mais favorável (triptofano).…”
Section: Voltamétricasunclassified
“…A presença do surfactante catiônico (CTAB) produziu um aumento de 16 vezes na velocidade de reação no caso mais favorável (triptofano). Este efeito acelerador proporcionado pelas micelas de CTAB foi utilizado também para a determinação cinética de compostos fenólicos e de vários aminoácidos (Gerakis et al, 2000).…”
Section: Voltamétricasunclassified