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Simultaneously Determination of Six Kinds of Preservatives in Food by Gas Chromatography with AC10 Bore Capillary Column

Wan Qing-quan

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Abstract

[Objective]To establish a gas chromatographic(GC) method for simultaneously determination of six kinds of preservatives in food(dimethyl fumarate,sorbic acid,benzioc acid,ethyl p-hydroxybenzoate,propyl p-hydroxybenzoate,butyl p-hydroxybenzoate).[Methods]After acidulation of the sample then it was extracted with aether and cleaned up.The extractives are analyzed with FID and AC10 bore capillary column.[Results]The linear ranges of six kinds of preservatives were 10～1 000 μg/ml.The recoveries were between 80.0%～92.4% and the relative standard deviations were between 3.0%～8.5%,the detection limits were between 3～10 mg/kg.[Conclusion]The method was easy to operate,had satisfactory separation effect and wide linear rang.It was suitable for the detecting of preservatives in foods.

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What this paper is about

[Objective]To establish a gas chromatographic(GC) method for simultaneously determination of six kinds of preservatives in food(dimethyl fumarate,sorbic acid,benzioc acid,ethyl p-hydroxybenzoate,propyl p-hydroxybenzoate,butyl p-hydroxybenzoate).[Methods]After acidulation of the sample then it was extracted with aether and cleaned up.The extractives are analyzed with FID and AC10 bore capillary column.[Results]The linear ranges of six kinds of preservatives were 10～1 000 μg/ml.The recoveries were between 80.0%～92.4% and the relative standard deviations were between 3.0%～8.5%,the detection limits were between 3～10 mg/kg.[Conclusion]The method was easy to operate,had satisfactory separation effect and wide linear rang.It was suitable for the detecting of preservatives in foods.

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Available abstract

[Objective]To establish a gas chromatographic(GC) method for simultaneously determination of six kinds of preservatives in food(dimethyl fumarate,sorbic acid,benzioc acid,ethyl p-hydroxybenzoate,propyl p-hydroxybenzoate,butyl p-hydroxybenzoate).[Methods]After acidulation of the sample then it was extracted with aether and cleaned up.The extractives are analyzed with FID and AC10 bore capillary column.[Results]The linear ranges of six kinds of preservatives were 10～1 000 μg/ml.The recoveries were between 80.0%～92.4% and the relative standard deviations were between 3.0%～8.5%,the detection limits were between 3～10 mg/kg.[Conclusion]The method was easy to operate,had satisfactory separation effect and wide linear rang.It was suitable for the detecting of preservatives in foods.

Key concepts: Sorbic acid, Preservative, Chromatography, Chemistry, Gas chromatography, Food Preservatives, Detection limit, Dehydroacetic acid

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