Sequential injection spectrophotometric determination of iron as Fe(II) in multi-vitamin preparations using 1,10-phenanthroline as complexing agent*1

Simultaneous determination of iron (II) and ascorbic acid in pharmaceuticas based on flow sandwich technique

“…In comparison with the previously reported flow approaches (Kukoc-Modun et al, 2012;Lenghor et al, 2002;Molina-Diaz et al, 1998;Oliveira & Masini, 2001;Tesfaldet et al, 2004;Udnana et al, 2004) the flow system based on sandwich technique has been proposed for the simultaneous separate determination of iron (II) and ascorbic acid in antianemic pharmaceuticals for the first time. Taking into account high content of analytes (13-20%) in the pharmaceuticals the LOD values of the developed approach are quite satisfactory.…”

“…For the determination of iron (II) and ascorbic acid in pharmaceuticals the flow injection (Alonso, Bartrolí, del Valle, & Barber, 1989;Alonso, Bartroli, Delvalle, Escalada, & Barber, 1987;Alonso-Chamarro, Bartroli, & Barber, 1992;Araujo, Lima, Alonso-Chamarro, Bartroli, & Poch, 1991;Cerda & Cerda, 2009;Falkova, Pushina, Bulatov, Alekseeva, & Moskvin, 2014;Horstkotte & Cerdà, 2009;ISO 5725-1, 1994; IUPAC, 1997; Kukoc-Modun, Biocic, & Radic, 2012;Lenghor et al, 2002;Mervartova et al, 2007;Molina-Diaz, Ortega-Carmona, & Pascual-Reguera, 1998;Mortatti, Krug, Pessenda, & Zagatto, 1982;Ruzicka & Hansen, 1975;Ruzicka & Marshall, 1990;Tzanavaras & Themelis, 2007;Udnana et al, 2004) and sequential injection (Lenghor et al, 2002;Oliveira & Masini, 2001;Tesfaldet, van Staden, & Stefan, 2004) techniques were developed, which provide high sensitivity (Table 1) ). However, they are focused only on the determination of iron (II) or ascorbic acid.…”

Simultaneous Determination of Fe(III) and Fe(II) Ions via Complexation with Salicylic Acid and 1,10-Phenanthroline in Microcolumn Ion Chromatography

“…There are many techniques reported for determination of iron in the literature: [1][2][3][4][5][6][7][8][9][10][11][12][13][14] colorimetry, 1 ICP, 2 atomic absorption spectrometry [3][4][5] and chromatography. [8][9][10][11][12][13] Most of the methods are based on determination of one form of the iron and/or the total iron.…”

“…[8][9][10][11][12][13] Most of the methods are based on determination of one form of the iron and/or the total iron. [1][2][3][4][5][6][7][8] Saitoh and Oikawa reported determination of Fe(II) and Fe(III) by ion chromatography, where Fe(III) was reduced to Fe(II) by ascorbic acid. 10 Moses et al reported determination of Fe(III) and Fe(II), but in determination of Fe(III) some interference occurred when Fe(II) was present.…”

Deferiprone, a non-toxic reagent for determination of iron in samples via sequential injection analysis

“…In order to avoid such deficiencies, an adequate supply of iron is needed. Ferrous fumarate [6], is a drug formula that provides the body with the extra amounts of iron. It is used to treat or prevent iron deficiency anemia, a condition that occurs when the body has fewer red blood cells than it needs owing to a poor diet, excess bleeding, or as the result of other medical problem.…”