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Development and validation of a method for the analysis of ochratoxin a in roasted coffee by liquid chromatography/electrospray-mass spectrometry in tandem (LC/ESI-MS/MS)

Development and validation of a method for the analysis of ochratoxin a in roasted coffee by liquid chromatography/electrospray-mass spectrometry in tandem (LC/ESI-MS/MS)

Bandeira, Raquel D. C. C. ; Uekane, Thais M. ; Cunha, Carolina P. da ; Geaquinto, Luths R. O. ; Cunha, Valnei S. ; Caixeiro, Janaina M. R. ; Godoy, Ronoel Luiz O. ; Cruz, Marcus Henrique C. de la
URI: https://doi.org/10.1590/S0100-40422012000100013
http://www.sbicafe.ufv.br/handle/123456789/13463
Date: 2012

Abstract:

A method using LC/ESI-MS/MS for the quantitative analysis of Ochratoxin A in roasted coffee was described. Linearity was demonstrated (r = 0.9175). The limits of detection and quantification were 1.0 and 3.0 ng g-1, respectively. Trueness, repeatability and intermediate precision values were 89.0-108.8%; 2.4-13.7%; 12.5-17.8%, respectively. To the best of our knowledge, this is the first report in which Ochratoxin A in roasted coffee is analysed by LC/ESI-MS/MS, contributing to the field of mycotoxin analysis, and it will be used for future production of Certified Reference Material.

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