期刊
FOOD ANALYTICAL METHODS
卷 12, 期 1, 页码 1-11出版社
SPRINGER
DOI: 10.1007/s12161-018-1324-9
关键词
Covalent organic frameworks; Sold phase extraction; High-performance liquid chromatography; Biogenic amines; Meat sample
资金
- National Natural Science Foundation of China [31471643, 31571925, 31671930]
- Hebei Double First Class Discipline Construction Foundation for the Discipline of Food Science and Engineering of Hebei Agricultural University [2016SPGCA18]
- Natural Science Foundation of Hebei Province [C2018204076]
- Youth Scientific and Technological Research Foundation of the Department of Education of Hebei for Hebei Provincial Universities [QN2017085]
A functionalized covalent organic framework (COF) was synthesized via room-temperature solvent-free mechano-chemical grinding method and used as a solid-phase extraction adsorbent for the extraction of eight biogenic amines (tryptamine, n-butylamine, phenylethylamine, cadaverine, putrescine, tyramine, spermine, and spermidine) in diverse meat samples. The target biogenic amines were derived with dansyl chloride to form stable fluorogenic derivatives for their high-performance liquid chromatography-fluorescence detection. The main important experimental parameters were investigated and optimized by both one-factor-at-a-time and response surface methodologies. Under the optimum conditions, a linear response for the biogenic amines was observed in the concentration range of 5.0-800.0gL(-1) with the coefficients of determination (r(2)) ranging from 0.9944 to 0.9981. The limits of detection of this method (at a signal-to-noise ratio of 3) for the analytes ranged from 0.92 to 2.57gL(-1). The method recoveries of the target biogenic amines for five meat samples ranged from 80.3 to 115%, with relative standard deviations lower than 12%. The results indicate that the prepared COF is an effective adsorbent for the enrichment of biogenic amines.
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