Detection of Tris(2,4-di-tert-butylphenyl)phosphite (Irgafos 168,Antioxidant in Plastics) and Its Oxide in Commercial Frozen Vegetables

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  • 市販冷凍野菜中からのプラスチック酸化防止剤トリス（２，４‐ジ‐ｔ‐ブチルフェニル）ホスファイト（Ｉｒｇａｆｏｓ１６８）およびその酸化物の検出
  • 市販冷凍野菜中からのプラスチック酸化防止剤トリス(2,4-ジ-t-ブチルフェニル)ホスファイト(Irgafos 168)およびその酸化物の検出
  • シハン レイトウ ヤサイ チュウ カラ ノ プラスチック サンカ ボウシザイ トリス 2 4 ジ t ブチルフェニル ホスファイト Irgafos 168 オヨビ ソノ サンカブツ ノ ケンシュツ

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Two peaks, A and B, detected in chromatograms of commercial frozen vegetable extracts during analysis of organophosphorus pesticide residues by GC-FPD, were identified as tris(2,4-di-tert-butylphenyl)phosphite (Irgafos 168) and Irgafos 168 oxide, respectively, from their mass spectra. Irgafos 168 is used as an antioxidant in plastics, and there has been no report of its detection in foods. We analyzed Irgafos 168 and its oxide in 38 samples of commercial frozen vegetables, and they were detected from 4 samples (0.02∼0.80 μg/g as total amount of Irgafos 168 and its oxide).

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