1996
DOI: 10.1016/0731-7085(96)01821-3
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Flow-injection fluorimetric determination of penicillamine and tiopronin in pharmaceutical preparations

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Cited by 42 publications
(8 citation statements)
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“…64,[75][76][77]81,123 O íon cérico é um reagente oxidante bastante versátil que reage estequiometricamente com vários fármacos. Sua forma reduzida apresenta fluorescência a 357 nm em meio ácido, tendo sido empregado na análise em batelada e em fluxo de princípios ativos como os antibióticos amoxilina 123 3 2-formado pela redução quantitativa do íon Tl 3+ na presença do fármaco em meio de ácido clorídrico tem sido explorado na quantificação em fluxo de fármacos contendo grupos tióis como a tiopronina (N-2-mercaptopropioniglicina) e a penicilamina (3-mercapto-D-valina), 79 empregados no tratamento de doenças do fígado e pele, e na artrite reumatóide, respectivamente.…”
Section: Fluorescência Nativa De íOns Metálicosunclassified
“…64,[75][76][77]81,123 O íon cérico é um reagente oxidante bastante versátil que reage estequiometricamente com vários fármacos. Sua forma reduzida apresenta fluorescência a 357 nm em meio ácido, tendo sido empregado na análise em batelada e em fluxo de princípios ativos como os antibióticos amoxilina 123 3 2-formado pela redução quantitativa do íon Tl 3+ na presença do fármaco em meio de ácido clorídrico tem sido explorado na quantificação em fluxo de fármacos contendo grupos tióis como a tiopronina (N-2-mercaptopropioniglicina) e a penicilamina (3-mercapto-D-valina), 79 empregados no tratamento de doenças do fígado e pele, e na artrite reumatóide, respectivamente.…”
Section: Fluorescência Nativa De íOns Metálicosunclassified
“…It can also increase intracellular concentration of GSH and other non-protein sulphydryl groups and thereby increase intracellular defense against oxygen free radicals [8]. A number of studies on the determination of tiopronin using spectrophotometry [9,10], chemiluminescence [6,11], fluorimetry [12,13], amperometry [14] and liquid chromatography [15][16][17] have been published.…”
Section: Introductionmentioning
confidence: 99%
“…This method is superior to the others in literature in some ways. First, the sensitivity of this method is higher than that of other indirect fluorimetric methods [12,13]. Second, the intrinsic fluorescence of NADH was employed as the detection signal and no tedious derivation was needed, which greatly simplified the operation.…”
Section: Introductionmentioning
confidence: 99%
“…Tiopronin [N-(2-mercaptopropionyl)-glycine] is an important thiol-containing compound for the treatment of rheumatoid arthritis, hepatic disorders as well as an antidote to heavy metal poisoning. Several methods have been proposed for the determination of the tiopronin, such as spectrophotometry, [1] chemiluminescence, [2,3] fluorimetry, [4][5][6][7] amperometry [8] and liquid chromatography. [9][10][11][12][13] Among the reported methods for detecting tiopronin, the use of fluorescent probes has its apparent advantages over other methods in terms of sensitivity and selectivity.…”
Section: Introductionmentioning
confidence: 99%
“…[9][10][11][12][13] Among the reported methods for detecting tiopronin, the use of fluorescent probes has its apparent advantages over other methods in terms of sensitivity and selectivity. Although the fluorimetric method has been developed for the determination of tiopronin, most of the methods are based on the fluorescence quenching [6] or redox mechanism, [4,5,7] and relatively few sensitive and selective fluorescent probes have been developed for tiopronin quantification.…”
Section: Introductionmentioning
confidence: 99%