Kinetic spectrophotometric method as a new strategy for the determination of vitamin B9 in pharmaceutical and biological samples

Shishehbore, M. Reza; Sheibani, Ali; Haghdost, A.

doi:10.1016/j.saa.2011.06.015

Cited by 31 publications

(17 citation statements)

References 26 publications

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“…Other methods have included spectrophotometry (Shishehbore, Sheibani, and Haghdost 2011), chemiluminiscence (Zhang, Zhao, and Lin 2008), fluorimetry, (Yu et al 2009) and biosensor-based determination (Caselunghe and Lindeberg 2000). These techniques provide useful and complex information in terms of identification and quantification.…”

Section: Introductionmentioning

confidence: 99%

Simple and Rapid Quantification of Folic Acid in Pharmaceutical Tablets using a Cathodically Pretreated Highly Boron-doped Polycrystalline Diamond Electrode

et al. 2015

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A simple, rapid, and sensitive electroanalytical method for the direct quantification of folic acid was developed using square-wave voltammetry with a cathodically pretreated highly borondoped polycrystalline diamond electrode. The morphology and structure of this electrode were Downloaded by [University of Lethbridge] at 03:15 05 October 2015 2investigated by scanning electron microscopy and Raman spectroscopy. The electrochemical behavior of folic acid was studied by cyclic voltammetry and an irreversible oxidation peak was observed at +0.78 volt versus Ag/AgCl in Britton-Robinson buffer at pH 5. Using optimized square-wave voltammetry parameter values, the response of folic acid was linear from 0.1 to 167 micromolar with a limit of detection of 30 nanomolar with good repeatability. The influence of some interfering compounds was also evaluated. The method was successfully applied to the quantification of folic acid in pharmaceutical tablets. Considering the importance of the analyte upon human health, the boron-doped diamond electrode may be employed as an effective alternative electroanalytical approach.

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Section: Introductionmentioning

confidence: 99%

Simple and Rapid Quantification of Folic Acid in Pharmaceutical Tablets using a Cathodically Pretreated Highly Boron-doped Polycrystalline Diamond Electrode

et al. 2015

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“…In point of chemical structure, it is a compound in family of amines with featuring of phenothiazine. It was used for the determination of folic acid 11 , dopamine 12 and vanadium 13 .…”

Section: Resultsmentioning

confidence: 99%

Sensitive Determination of Epinephrine Using Kinetic Spectrophotometric Method

Ekhtesasi¹,

Shishehbore²

2016

Orient. J. Chem

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In this study, thionine -bromate as a sensitive reaction system using kinetic spectrophotometric method for the determination of epinephrine is proposed. The method is based on the catalytic effect of epinephrine on the selected reaction system. The change in absorbance was followed spectrophotometrically as a criterion of the oxidation reaction progress. The effective reaction variables were optimized. Under optimized experimental conditions, calibration curve was linear over the range 0.4 -12.8 mg/l and the detection limit was 0.13 mg/l for five replicate determinations of blank signal. The interfering effect of various species was also investigated. The developed procedure was successfully applied for the determination of epinephrine in pharmaceutical and biological samples satisfactorily.

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“…Hence, the development of sensitive and fast methods for the determination of folic acid has attracted considerable attention. [17][18][19] Some analytical methods have been reported for the determination of FA with high performance liquid chromatography, 20 spectrophotometry, 21 chemiluminescence, 22 spectrofluorometric 23 and Enzyme-linked ligand sorbent test methods. 24 But these techniques have many disadvantages, such as high cost from the equipments and disposable chemi-Safaei et al: Modified Screen Printed Electrode for Selective ... cals, complicated and time-consuming pretreatments, and so on.…”

Section: Introductionmentioning

confidence: 99%

Modified Screen Printed Electrode for Selective Determination of Folic Acid

Safaei

Beitollahi²,

Shishehbore

2019

ACSi

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Folic acid (FA) as one of the water-soluble vitamins contributes to the construction of healthy cells, as FA deficiency is one of the leading causes of anaemia. Based on reports, reduced folate level can lead to development of carcinogenesis. Hence, its analysis from the clinical point of view is highly demanded. In the present work, NiFe 2 O 4 nanoparticles was successfully synthesized and used for modified novel voltammetric sensor for determination of folic acid. Differential pulse voltammetry response shows the linear increment of oxidation signals with an increase in the concentration of folic acid in the range of 1.0 × 10-7-5.0 × 10-4 M with limit of detection 3.4 × 10-8 M. The modified electrode displays an excellent selectivity towards the determination of FA even in the presence of various interfering species. Finally, the screen printed electrode (SPE) consists of three main parts which are a graphite counter electrode, a silver pseudo-reference electrode and a graphite working electrode modified by NiFe 2 O 4 nanoparticles (NFO), and was applied for FA determination folic acid in tablet and urine samples whose accuracy was attested by means of addition and recovery assays (97.0-103.5%) as well as by differential pulse voltammetry.

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Kinetic spectrophotometric method as a new strategy for the determination of vitamin B9 in pharmaceutical and biological samples

Cited by 31 publications

References 26 publications

Simple and Rapid Quantification of Folic Acid in Pharmaceutical Tablets using a Cathodically Pretreated Highly Boron-doped Polycrystalline Diamond Electrode

Simple and Rapid Quantification of Folic Acid in Pharmaceutical Tablets using a Cathodically Pretreated Highly Boron-doped Polycrystalline Diamond Electrode

Sensitive Determination of Epinephrine Using Kinetic Spectrophotometric Method

Modified Screen Printed Electrode for Selective Determination of Folic Acid

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