プレパック多層シリカゲルカラムを用いた前処理による食品中のダイオキシン類分析

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タイトル別名
  • Cleanup of Food Samples with Pre-packed Multi-layer Silica Gel Column for the Analysis of PCDDs, PCDFs and Dioxin-like PCBs.

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The cleanup procedure for the determination of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (PCBs) in food samples using a disposable pre-packed multi-layer silica gel column (multi-layer dioxin tube; D-tube) was evaluated. The blank test showed the need for conditioning of the column with n-hexane. To compare the method with the D-tube and the conventional method for the analyses of actual food samples, seven food samples (spinach, komatsuna, rice, salmon, beef, egg and butter) were extracted by shaking with acetone-n-hexane or n-hexane after alkaline treatment, and then the extracts were cleaned up by use of the D-tube or the prepared conventional column, followed by several column chromatographic steps. Both cleanup procedures gave similar values at each isomeric concentration level and showed similar efficiency with favorable recoveries. The results suggest that the D-tube is applicable to cleanup for the analysis of PCDD/Fs and dioxin-like PCBs in foods.

収録刊行物

  • 食品衛生学雑誌

    食品衛生学雑誌 44 (2), 119-125, 2003

    公益社団法人 日本食品衛生学会

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