Method for analysis dried vine fruits contaminated with ochratoxin A

The EU maximum limit of 10 μg 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...

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Bibliographic Details
Published in:Analytica chimica acta 2008-06, Vol.617 (1), p.59-63
Main Authors: Galvis-Sánchez, Andrea C., Barros, Antonio S., Delgadillo, Ivonne
Format: Article
Language:English
Subjects:
Analytical chemistry
Calibration
Chemistry
Clean-up procedure
Desiccation
Exact sciences and technology
Food Contamination - analysis
Fruit - chemistry
FTIR-ATR
Mycotoxin
Ochratoxin A
Ochratoxins - analysis
Plant Stems - chemistry
Sample preparation
Solutions
Spectrometric and optical methods
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Summary:The EU maximum limit of 10 μg 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 μg 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).
ISSN:0003-2670
1873-4324
DOI:10.1016/j.aca.2008.02.065