Navegando por Autor "Cunha, Valnei S."

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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)
    (Sociedade Brasileira de Química, 2012) 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
    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.