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首页> 外文期刊>Electroanalysis >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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Electrocatalytic application of girard's reagent t to simultaneous determination of furaldehydes in pharmaceutical and food matrices by highly sensitive voltammetric methods

机译：吉拉德试剂t的电催化应用以高灵敏度伏安法同时测定药物和食品基质中的糠醛

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摘要

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 < ugglevels 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, respectively. At a 1.0 ugg 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 NH NH Cl buffer of pH 9.5, resulted in a limit of detection of 10 ng g for the resolved peaks of HMF and F. The results obtained by the proposed method for the real samples were compared with the corresponding results from UV-spectrophotometry and HPLC experiments in various matrices.
机译：描述了一种灵敏而精确的伏安法，用于测定食品，药品和其他基质中的痕量糠醛，主要是糠醛（F）和5-羟甲基-2-糠醛（HMF）。分别研究了碱性缓冲水性介质中

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