Faster screening methods are becoming increasingly important to permit rapid analyses, and FT-NIR spectroscopy offers the possibility of such a method. Validation of screening methods requiring the application of multivariate data treatment is less frequently described in literature, thus limiting their use as routine tools in control laboratories for food fraud monitoring. Guidelines for validating screening methods for EU Official Control Laboratories involving pesticide residues, GMOs, allergens mycotoxins etc., were issued in 2013. In this research, an EU-validation procedure for screening methods was developed and successfully applied to a multivariate FT-NIR spectroscopic method for the screening of durum wheat pasta samples adulterated with common wheat at the screening target concentration of 3%. The results obtained demonstrated that the validation approach would be a proof-of-strategy to be used for multivariate infrared methods applied for screening purposes.
Read the abstract here
Comments