期刊
FOOD CHEMISTRY
卷 274, 期 -, 页码 254-260出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.09.009
关键词
Solid phase microextraction; Coated carbon fibers; Phytohormones; N,O-bis(trimethylsilyl)trifluoroacetamide; On-fiber derivatization; Wheat
资金
- National Natural Science Foundation, China [21775134]
New coated carbon fibers (CCFs) have been synthesized, characterized and used as solid phase microextraction (SPME) matrix for the analysis of phytohormones (jasmonic acid, indole-3-acetic acid, and abscisic acid) in wheat samples. The SPME device, realized inserting CCFs in a pencil-type device, when coupled with gas chromatography-mass spectrometry, provides in few steps high recovery values (79-112%), fast on-fiber derivatization (30 s), good method reproducibility (RSD < 20%), low detection limits (0.5-2.1 ng g(-1)). The penciltype CCFs-SPME device was successfully employed for the determination of phytohormone in wheat samples, allowing simple and quick extraction/derivatization/injection processes. The proposed device can be then considered as a promising and functional tool for fast and reliable extraction and preconcentration of analytes from real samples, allowing a simple derivatization procedure and direct injection in the chromatographic instrumentation.
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