Electrocatalytic Application of Girard's Reagent T to Simultaneous Determination of Furaldehydes in Pharmaceutical and Food Matrices by Highly Sensitive Voltammetric Methods

Sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (F) and 5‐hydroxymethyl‐2‐furaldehyde (HMF), in foods, pharmaceutical and other matrices is described. Determination of total furaldehyde at

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Veröffentlicht in:Electroanalysis (New York, N.Y.) N.Y.), 2010-06, Vol.22 (12), p.1314-1322
Hauptverfasser: Shamsipur, Mojtaba, Beigi, Ali Akbar Miran, Teymouri, Mohammad, Tash, Shahram Abolhassan, Samimi, Vahid
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container_issue 12
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container_title Electroanalysis (New York, N.Y.)
container_volume 22
creator Shamsipur, Mojtaba
Beigi, Ali Akbar Miran
Teymouri, Mohammad
Tash, Shahram Abolhassan
Samimi, Vahid
description Sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (F) and 5‐hydroxymethyl‐2‐furaldehyde (HMF), in foods, pharmaceutical and other matrices is described. Determination of total furaldehyde at
doi_str_mv 10.1002/elan.200900600
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Determination of total furaldehyde at &lt;μg g−1 levels in alkaline buffered aqueous media was individually investigated. By the use of ordinary SWV and adsorptive square wave stripping voltammetry (Ad‐SWSV), the detection limits for determination of F and HMF found to be 400 and 10 ng g−1, respectively. At a 1.0 μg g−1 level of furfural in sample, the relative standard deviation (n=4) was 2.79%. The application of Ad‐SWSV to the determination of F and HMF, after their in situ derivatization with trimethylaminoacetohydrazide chloride (Girard's reagent T) at a static mercury drop electrode (SMDE) in NH3‐NH4Cl buffer of pH 9.5, resulted in a limit of detection of 10 ng g−1 for the resolved peaks of HMF and F. 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Determination of total furaldehyde at &lt;μg g−1 levels in alkaline buffered aqueous media was individually investigated. By the use of ordinary SWV and adsorptive square wave stripping voltammetry (Ad‐SWSV), the detection limits for determination of F and HMF found to be 400 and 10 ng g−1, respectively. At a 1.0 μg g−1 level of furfural in sample, the relative standard deviation (n=4) was 2.79%. The application of Ad‐SWSV to the determination of F and HMF, after their in situ derivatization with trimethylaminoacetohydrazide chloride (Girard's reagent T) at a static mercury drop electrode (SMDE) in NH3‐NH4Cl buffer of pH 9.5, resulted in a limit of detection of 10 ng g−1 for the resolved peaks of HMF and F. 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subjects Adsorptive stripping voltammetry
Buffers
Chlorides
Foods
Furaldehydes
Furfural
Glassy carbon coated mercury film electrode
Mathematical analysis
Matrices
Matrix methods
Oil refining waste waters
Pharmaceuticals
Square wave voltammetry
Voltammetry
title Electrocatalytic Application of Girard's Reagent T to Simultaneous Determination of Furaldehydes in Pharmaceutical and Food Matrices by Highly Sensitive Voltammetric Methods
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