2014
DOI: 10.5155/eurjchem.5.1.81-84.881
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Abstract: A simple spectrophotometric method has been described for the determination of thiamine. The method is based on the precipitation of sulphur as barium sulphate using barium chloride after oxidation of thiamine by sodium hydroxide and hydrogen peroxide. Beer's law was obeyed over the concentration range from 2-32 µg/mL thiamine. The average of standard deviation was 1.18×10 -2 ; standard error, 5.20×10 -3 ; relative standard deviation, 0.51%; relative standard error, 5.40×10 -3 ; 95% coefficient, 1.48×10 -2 ; t… Show more

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Cited by 8 publications
(7 citation statements)
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“…Interest remains in the development of modern colorimetric methods for the analysis of thiamine in pharmaceutical products, with numerous approaches reported within the last 20 years . Of these, two methods that provide a clear advantage over previous approaches are mentioned within.…”
Section: Analytical Methods Based On Chemical Propertiesmentioning
confidence: 99%
“…Interest remains in the development of modern colorimetric methods for the analysis of thiamine in pharmaceutical products, with numerous approaches reported within the last 20 years . Of these, two methods that provide a clear advantage over previous approaches are mentioned within.…”
Section: Analytical Methods Based On Chemical Propertiesmentioning
confidence: 99%
“…A literature review showed that very few analytical methods have been reported for optimization of spectroscopy conditions in UV-visible Spectrophotometry methods using two-level full factorial design [8] Central Composite Face Centered Design [9] Box-Behnken design [10]. A few UV-visible Spectrophotometry methods have been formerly reported for the estimation of Thiamine Hydrochloride in pharmaceuticals [11][12][13][14]. Other techniques reported for the assay of Thiamine Hydrochloride in pharmaceuticals include Fluorimetry [15,16], HPLC [17][18][19][20][21][22], Polarography method [23,24] and Voltammetry [25].…”
Section: Introductionmentioning
confidence: 99%
“…Several analytical methods have been frequently used for the determination of TM, e.g. high‐performance liquid chromatography (HPLC), Resonance Rayleigh Scattering (RRS), capillary electrophoresis, electrochemical analysis, spectrophotometry, chemiluminescence, spectrofluorimetry . It is generally known that chromatography provides sensitive and specific multi‐analytical results, while it is time‐consuming and depends on highly skilled personnel and costly equipment; capillary electrophoresis, which is quick and efficient has a poor reproducibility; the electrochemical method is of high selectivity, long‐term reliability and cost‐effective as an analytical technique, yet much time may be spent on pretreatment to obtain functionalized electrode; the spectrofluorometric technique is simple, sensitive, less‐waste and easy operation, all things considered, which can be regarded as an option for the determination of TM.…”
Section: Introductionmentioning
confidence: 99%