期刊
ANALYTICA CHIMICA ACTA
卷 617, 期 1-2, 页码 59-63出版社
ELSEVIER
DOI: 10.1016/j.aca.2008.02.065
关键词
FTIR-ATR; clean-up procedure; sample preparation; mycotoxin; ochratoxin A
The EU maximum limit of 10 mu g kg(-1) of OTA for dried vine fruits has been established since 2002 (European Commission, 2005). The presented work explore the capability of using Fourier infrared spectroscopy attenuated total reflection (FTIR-ATR) for the detection of ochratoxin A (OTA) in dried vine fruits in a range of concentration between 2 and 50 mu g kg(-1) OTA. The method developed included a sample pretreatment using a C18 cartridge which was efficient for the isolation of the mycotoxin. The PLS1 analysis of the spectrum of sultanas spiked with different OTA concentrations showed a good correlation between the spectral data and reference concentration for OTA (R-2 = 0.85). (C) 2008 Elsevier B.V. All rights reserved.
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