1986
DOI: 10.1016/s0003-2670(00)86488-0
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Spectrophotometric flow-injection determination of ascorbic acid by generation of triiodide

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Cited by 35 publications
(4 citation statements)
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“…Thus, the formation of ferroin complex from the reduction of Fe(III)-phenanthroline [13] and a method using choramine T in the presence of starch-KI solution [14] were adapted. Descolorimetry was also employed by reduction of Cerium (IV) [15] and by reduction of triiodide [16]. This last paper involves the online formation of iodine and the measurement of the inverse peaks caused by the excess of triiodide at 350nm or the triiodide/starch complex at 580nm.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, the formation of ferroin complex from the reduction of Fe(III)-phenanthroline [13] and a method using choramine T in the presence of starch-KI solution [14] were adapted. Descolorimetry was also employed by reduction of Cerium (IV) [15] and by reduction of triiodide [16]. This last paper involves the online formation of iodine and the measurement of the inverse peaks caused by the excess of triiodide at 350nm or the triiodide/starch complex at 580nm.…”
Section: Introductionmentioning
confidence: 99%
“…O emprego da análise por injeção em fluxo permite a geração em linha de íons I 3 -a partir de soluções de iodato e iodeto de potássio 12 , em um meio de acidez controlada, conforme a reação 13 :…”
Section: Inroduçãounclassified
“…Flow-injection methods have been proposed for the determination of ethylenediaminetetraacetic acid and ascorbic acid. In the former procedure, amperometric detection at the glassy carbon electrode is used (20), while in the latter, spectrophotometric detection of the triiodide-starch complex is used (21).…”
Section: Acidsmentioning
confidence: 99%