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Welch Materials Ultisil Lead Oxide Columns

Ultisil Lead Oxide is designed for the determination of malachite green and leuco malachite green residues in aquatic products, in accordance with SC/T 3021-2004 (Determination of Malachite Green Residues in Fishery Products) and NY/T 1756-2012 (Determination of Malachite Green in Feeds).

Since leuco malachite green does not absorb in the visible light range, a post-column oxidation column is typically used to convert it into malachite green, allowing for detection. This post-column derivatization effectively addresses the challenge of detecting leuco malachite green via UV detection.

Ultisil Series HPLC Columns are based on ultra-pure (purity > 99.999%) spherical and totally porous silica, unique bonding chemistry and proprietary surface modification techniques, producing excellent peak shape, column efficiency and exceptional lot-to-lot reproducibility. Ultisil column is the best choice for method development. owing to complete bonding chemistries and stable performance.

Features

  • Ultra-pure spherical porous silica, purity > 99.999%
  • Wide pH range: 2.0-8.0
  • High efficiency: theoretical plate > 80000/m
  • Excellent peak symmetry: tailing factor=0.95~1.05
  • Exceptional lot-to-lot reproducibility

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