Simple Analysis of Maleic Hydrazide in Agricultural Products by HPLC.

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  • ＨＰＬＣによる農産物中マレイン酸ヒドラジドの簡易分析
  • HPLC ニ ヨル ノウサンブツ チュウ マレインサン ヒドラジド ノ カンイ ブンセキ

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A simplified HPLC determination method for maleic hydrazide in agricultural products was developed, and commercial agricultural crops were investigated.<br>The homogenate of agricultural products was extracted with water. The crude extract was purified on an ACCUCAT Bond Elut® extraction cartridge using water. Maleic hydrazide was analyzed by HPLC with UV detection (303 nm). The HPLC separation was performed on a ZORBAX SB-Aq column with acetonitrile-water-phosphoric acid (5 : 95 : 0.01) as the mobile phase.<br>Recoveries of maleic hydrazide from 15 agricultural products fortified at 1.0 and 10 μg/g were in the ranges of 92.6∼104.9% and 94.2∼101.3%, respectively. The limit of detection was 0.5 μg/g in samples. The proposed method was applied to the determination of 242 commercial vegetables and fruits. Maleic hydrazide was detected in 2 samples of imported onion at the levels of 4.9 and 7.2 μg/g.

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