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Abstract <p>The chromatographic retention of alcohols, ketones, alditols, and carbohydrates on a cation exchanging column (200 × 4.6 mm, Sevko AA) packed with sulfonated poly(styrene-divinylbenzene) with a crosslinking degree of 10% and a particle diameter of 7 μm saturated with various counterions (H<sup>+</sup>, Ca<sup>2+</sup> and La<sup>3+</sup>) is studied in the ligand exchange chromatography version. The sorbent in the Ca<sup>2+</sup> form shows higher retention times and selectivity in the separation of carbohydrates and ethylene glycols. The sorbent in the La<sup>3+</sup> form provides a strong retention and a better selectivity for the separation of alditols. A possibility of using this column for determining carbohydrates in food products (juice, honey) using refractometric detection is shown.</p>

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Regularities of Retention of Alcohols, Ketones, and Sugars on a Sulfonic Acid Cation Exchanger in H+-, Ca2+- and La3+-Forms

  • 期刊论文

  • 发表日期：

    2025年8月19日

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  • A. Yu. Laptev,
  • S. S. Balashova,
  • N. B. Rozhmanova,
  • A. V. Sevko,
  • V. D. Kazakova,
  • P. N. Nesterenko

摘要

Abstract

The chromatographic retention of alcohols, ketones, alditols, and carbohydrates on a cation exchanging column (200 × 4.6 mm, Sevko AA) packed with sulfonated poly(styrene-divinylbenzene) with a crosslinking degree of 10% and a particle diameter of 7 μm saturated with various counterions (H+, Ca2+ and La3+) is studied in the ligand exchange chromatography version. The sorbent in the Ca2+ form shows higher retention times and selectivity in the separation of carbohydrates and ethylene glycols. The sorbent in the La3+ form provides a strong retention and a better selectivity for the separation of alditols. A possibility of using this column for determining carbohydrates in food products (juice, honey) using refractometric detection is shown.