Simultaneous adsorptive stripping voltammetric determination of riboflavin and folic acid in multivitamin preparations

Villamil, M.J.Fernández; Ordieres, Arturo J. Miranda; Garcı́a, Agustı́n Costa; Blanco, Paulino Tuñón

doi:10.1016/0003-2670(93)80180-s

Cited by 35 publications

(16 citation statements)

References 15 publications

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“…The results obtained are presented in Table 1. The results obtained for both formulations are in agreement with those values reported by the producers and those obtained by other voltammetric procedure [6]. On the basis of the obtained results it can be stated that the proposed procedure can be applied to folic acid determination in pharmaceutical formulations.…”

supporting

confidence: 93%

Determination of Folic Acid by Adsorptive Stripping Voltammetry at a Lead Film Electrode

Korolczuk

Tyszczuk

2007

Electroanalysis

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An adsorptive stripping voltammetric procedure for the determination of folic acid at an in situ plated lead film electrode was described. Formation of lead film on a glassy carbon substrate and accumulation of folic acid was performed simultaneously from an acetate buffer solution of pH 5.6 at the potential À 0.88 V. The measurements were carried out from aerated solutions. The calibration graph for an accumulation time of 300 s was linear from 2 Â 10 À9 to 5 Â 10 À8 mol L À1. The detection limit was 7 Â 10 À10 mol L À1, the relative standard deviation for 2 Â 10 À8 mol L À1 of folic acid was 3.9%. The proposed procedure was applied to folic acid determinations in pharmaceutical preparations.

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confidence: 93%

Determination of Folic Acid by Adsorptive Stripping Voltammetry at a Lead Film Electrode

Korolczuk

Tyszczuk

2007

Electroanalysis

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“…Adsorptive stripping voltammetry (ASV) on a Hanging mercury drop electrode (HMDE) has been successfully applied to the determination of low concentrations of riboflavin (vitamin B,) [1,2]. Mercury film electrodes (MFEs) have been recently applied to the determination of various organic compounds of biological and pharmaceutical significance [3-71.…”

Section: Introductionmentioning

confidence: 99%

A study of riboflavin determination by square wave adsorptive stripping voltammetry on mercury film electrodes

Economou¹,

Fielden²

1995

Electroanalysis

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In this work riboflavin was determined by square wave adsorptive stripping voltammetry (SWASV): riboflavin was initially adsorbed on a mercury film electrode (MFE) at a potential of 0.0 V (vs. Ag/AgCl) and at pH 12; the subsequent reductive stripping step was carried out by applying a square wave potential-time waveform on the electrode. Both a batch method (based on the rotating disk electrode configuration) and a flow approach [based on the wall-jet flow-through electrode and flow injection analysis (FIA)] were employed. Both instrumental and chemical parameters were investigated and optimized for analytical use of the technique. The limit of detection was 0.5 nmol L-' (for 10 min of preconcentration), the precision was 8 % for the batch system (at the 10nmolL-' level) and 6% for the flow system (at the 100nmol L-' level); the linear range depended on the preconcentration time and the mass transfer conditions during the accumulation step. Both methods were automated and applied to the determination of riboflavin in commercial pharmaceutical products with recovery values at over 90%.

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“…8 acid [16], gold nanoparticles-modified carbon paste electrode (AuNPs/CPE) [17], ethynylferrocene modified carbon nanotubes paste electrode [18], carbon nanotube paste electrode (PBDCNPE) with 2,2'-[1,2-phenylenediylbis(nitrilomethylidene)]bis(4-hydroxyphenol) [19]. The detection limits obtained in these studies were in the level of 10 À6 to 10 À9 mol L À1 and sometimes the fabrication process associated with chemical modified electrodes is typically both time-consuming and laborious.…”

Section: Introductionmentioning

confidence: 97%

“…However, some electroanalytical methodologies were already developed for FA analysis in pharmaceutical formulations using dropping mercury electrodes (DME) [5], static mercury drop electrode (SMDE) [6][7][8], and in estuary water using hanging drop mercury electrode (HDME) [9].…”

Section: Introductionmentioning

confidence: 99%

A Solid Film Electrode of Intermetallic Ag₂Hg_3.02 for the Direct Determination of Folic Acid in Fresh and Processed Fruit Juices

et al. 2014

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AgSIE was used for the direct analysis of folic acid (FA), with a detection limit and lower level of quantitation of 6.8×10−10 mol L−1 and 2.3×10−8 mol L−1. The analysis in fresh and processed fruits was done without any sample pretreatment. In strawberry and acerola juices, FA concentration level values were below the method detection limit. FA was detectable in peach (77.7±0.4 µg L−1 and 64.4±0.5 µg L−1), Persian lime (45.4±0.7 µg L−1), pineapple Hawaii (66.2±0.4 µg L−1), pear pineapple (35.3±0.6 µg L−1), cashew (54.4±0.5 µg L−1), passion fruit (73.2±0.3 µg L−1), and apple (84.4±0.5 µg L−1).

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Simultaneous adsorptive stripping voltammetric determination of riboflavin and folic acid in multivitamin preparations

Cited by 35 publications

References 15 publications

Determination of Folic Acid by Adsorptive Stripping Voltammetry at a Lead Film Electrode

Determination of Folic Acid by Adsorptive Stripping Voltammetry at a Lead Film Electrode

A study of riboflavin determination by square wave adsorptive stripping voltammetry on mercury film electrodes

A Solid Film Electrode of Intermetallic Ag₂Hg_3.02 for the Direct Determination of Folic Acid in Fresh and Processed Fruit Juices

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Simultaneous adsorptive stripping voltammetric determination of riboflavin and folic acid in multivitamin preparations

Cited by 35 publications

References 15 publications

Determination of Folic Acid by Adsorptive Stripping Voltammetry at a Lead Film Electrode

Determination of Folic Acid by Adsorptive Stripping Voltammetry at a Lead Film Electrode

A study of riboflavin determination by square wave adsorptive stripping voltammetry on mercury film electrodes

A Solid Film Electrode of Intermetallic Ag2Hg3.02 for the Direct Determination of Folic Acid in Fresh and Processed Fruit Juices

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A Solid Film Electrode of Intermetallic Ag₂Hg_3.02 for the Direct Determination of Folic Acid in Fresh and Processed Fruit Juices