Development of magnetic octadecylsilane particles as solid-phase extraction adsorbent for the determination of fat-soluble vitamins in fruit juice-milk beverage by capillary liquid chromatography
✍ Scribed by Chaofan Hu; Li Jia; Qingqing Liu; Sheng Zhang
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 250 KB
- Volume
- 33
- Category
- Article
- ISSN
- 1615-9306
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✦ Synopsis
Abstract
A sensitive, fast and simple method based on magnetic octadecylsilane particles was developed for the extraction of three fat‐soluble vitamins followed by capillary LC (CLC) analysis with UV detection. Magnetic octadecylsilane particles were prepared based on three‐step reactions including co‐precipitation, sol‐gel polymerization and alkylation. The characterization of the prepared product was studied by scanning electron microscope and Fourier‐transform infrared spectrometry. The particles were used as magnetic SPE adsorbent for the extraction of fat‐soluble vitamins in fruit juice‐milk beverage. The extraction condition and efficiency of the particles for fat‐soluble vitamins were investigated. By coupling magnetic SPE with capillary LC with UV detection, low concentrations of fat‐soluble vitamins in fruit juice‐milk beverage can be detected without the interference from other substances in the sample matrix.