Two Proficiency Testings (PTs) involving eighteen laboratory participants from 10 Countries have been conducted in 2014 for the simultaneous determination of deoxynivalenol, fumonisins B1 and B2, zearalenone, T-2 and HT-2 toxins, ochratoxin A and aflatoxins B1, B2, G1 and G2 in maize and of deoxynivalenol, zearalenone, T-2 and HT-2 toxins and ochratoxin A in wheat, respectively. The aim of PTs was to check next to the laboratory performance the state-of-art of the LC-MS multimycotoxin methods used by participants. In addition, the trend of performances of LC-MS methods for multi-mycotoxin determination in maize together with method-related issues was assessed by comparing three PTs organized over the years 2011-2014. Data showed the improvement of laboratory performances with the overall acceptable z-scores that progressively increased from 59% in 2011 PT to 85% in 2014 PT, while the rate of unacceptable z-score decreased from 25% in 2011 PT to 11% in 2014 PT.
Performance evaluation of LC-MS/MS methods for multi-mycotoxin determination in maize and wheat by means of international Proficiency Testing
De Girolamo A;Ciasca B;Pascale M;Visconti A;
2016
Abstract
Two Proficiency Testings (PTs) involving eighteen laboratory participants from 10 Countries have been conducted in 2014 for the simultaneous determination of deoxynivalenol, fumonisins B1 and B2, zearalenone, T-2 and HT-2 toxins, ochratoxin A and aflatoxins B1, B2, G1 and G2 in maize and of deoxynivalenol, zearalenone, T-2 and HT-2 toxins and ochratoxin A in wheat, respectively. The aim of PTs was to check next to the laboratory performance the state-of-art of the LC-MS multimycotoxin methods used by participants. In addition, the trend of performances of LC-MS methods for multi-mycotoxin determination in maize together with method-related issues was assessed by comparing three PTs organized over the years 2011-2014. Data showed the improvement of laboratory performances with the overall acceptable z-scores that progressively increased from 59% in 2011 PT to 85% in 2014 PT, while the rate of unacceptable z-score decreased from 25% in 2011 PT to 11% in 2014 PT.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
