Abstract
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 pencil-type 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.
| Original language | English |
|---|---|
| Pages (from-to) | 254-260 |
| Number of pages | 7 |
| Journal | Food Chemistry |
| Volume | 274 |
| DOIs | |
| State | Published - 15 Feb 2019 |
| Externally published | Yes |
Keywords
- Coated carbon fibers
- N,O-bis(trimethylsilyl)trifluoroacetamide
- On-fiber derivatization
- Phytohormones
- Solid phase microextraction
- Wheat
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