期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1619, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.chroma.2020.460930
关键词
Glucose carbon dots; Stationary phase; HILIC; Chromatographic separation; Goji berry
资金
- National Natural Science Foundation of China [21822407, 21675164]
- Xinjiang Tianshan Youth Plan Project [2017Q027]
A new stationary phase based on glucose-derived carbon dots-modified on silica (Sil-Glc-CDs) was prepared and applied in hydrophilic interaction chromatography (HILIC). The Sil-Glc-CDs column showed better retention ability and separation selectivity toward polar analytes, including amino acids, saccharides, ginsenosides, antibiotics, nucleosides, and nucleobases when compared with a commercial HILIC column and a home-made glucose-modified silica (Sil-Glc) column. The effect of the organic phase ratio, salt concentration, pH and column temperature on chromatographic retention behavior was investigated. In addition, the column exhibited good stability and column-to-column reproducibility (RSDs 0.80-1.97%, n = 3). Particularly, this column was successfully applied for the determination of the concentration of glucose (2.2 mg mL(-1)) and fructose (3.4 mg mL(-1)) in the goji berry solution. (C) 2020 Elsevier B.V. All rights reserved.
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