食品科学

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离子色谱法-积分安培检测器测定葡萄酒中的天然糖

马甲民1,2,崔 鹤1,*,张文皓1,李 立3,董丽臻1,李慧新1   

  1. 1.山东出入境检验检疫局,山东 青岛 266001;2.青岛大学,山东 青岛 266071;
    3.中国检验检疫科学研究院,北京 100123
  • 出版日期:2015-06-25 发布日期:2015-06-12
  • 通讯作者: 崔 鹤
  • 基金资助:

    国家重大科学仪器研发专项(2012YQ090229);国家质检公益性科研专项(201210012)

Determination of Naturally Occurring Sugars in Wine by Ion Chromatography with Integrated Pulsed Amperometric Detection

MA Jiamin1,2, CUI He1,*, ZHANG Wenhao1, LI Li3, DONG Lizhen1, LI Huixin1   

  1. 1. Shandong Extry-Exit Inspection and Quarantine Bureau, Qingdao 266001, China;
    2. Qingdao University, Qingdao 266071, China; 3. Chinese Academy of Inspection and Quarantine, Beijing 100123, China
  • Online:2015-06-25 Published:2015-06-12
  • Contact: CUI He

摘要:

建立测定葡萄酒中常见的8 种天然糖(阿拉伯糖、葡萄糖、木糖、果糖、L-山梨糖、蔗糖、异麦芽酮糖和麦芽糖)的离子色谱分析方法。以淋洗液发生器电解产生的KOH溶液梯度淋洗,在CarboPac PA20高效阴离子交换柱上,8 种天然糖可以在30 min内完成分离。使用积分安培检测器进行测定,8 种糖的检出限(进样量10 μL,RSN=3)分别为0.007、0.004、0.005、0.005、0.003、0.014、0.016 mg/L和0.020 mg/L,且均具有较宽的线性范围(0.06~30 mg/L)。样品测定的相对标准偏差在4.9%~8.7%之间,8 种糖的加标回收率在81.5%~95.1%之间;本方法检测糖简便快捷、分离效果好、无需衍生、灵敏度高,适用于葡萄酒中的8 种常见天然糖组分的分析。

关键词: 离子色谱, 积分安培检测器, 葡萄酒, 天然糖

Abstract:

We developed a method for the determination of eight naturally occurring sugars in wine by ion chromatography
with integral amperometric detection. We used potassium hydroxide (KOH) produced by eluent generator electrolysis for
gradient elution. On CarboPac PA20 anion exchange column, all eight target compounds could be separated completely in 30
minutes. The limits of detection (LODs) of these analytes by the integral amperometric detector were very low, and a wide
linear range was found. The relative standard deviations (RSDs) for six replicate determinations varied from 4.9% to 8.7%,
and the recoveries of these eight sugars from spiked samples ranged from 81.5% to 95.1%. Our method proved to be simple,
fast, sensitive and suitable for the analysis of the eight naturally occurring sugars in wine by achieving good separation
without derivatization.

Key words: ion chromatography (IC), integral amperometric detector (IAD), wine, naturally occurring sugar

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