Determination of ochratoxin A in liquorice products using HPLC-based analytical methods. Part II: harmonised method and method validation study

2010 ◽  
Vol 26 (2) ◽  
pp. 101-108 ◽  
Author(s):  
Marion Raters ◽  
Reinhard Matissek ◽  
Winni van Haren ◽  
Koop Fledderus
Author(s):  
F. M. Valle-Algarra ◽  
A. Medina ◽  
J. V. Gimeno-Adelantado ◽  
A. Llorens ◽  
M. Jimnez ◽  
...  

2010 ◽  
Vol 93 (2) ◽  
pp. 442-450 ◽  
Author(s):  
Michael Abbott ◽  
Stephen Hayward ◽  
William Ross ◽  
Samuel Benrejeb Godefroy ◽  
Franz Ulberth ◽  
...  

Abstract This document provides supplemental guidance on specifications for the development and implementation of studies to validate the performance characteristics of quantitative ELISA methods for the determination of food allergens. It is intended as a companion document to other existing publications on method validation. The guidance is divided into two sections: information to be provided by the method developer on various characteristics of the method, and implementation of a multilaboratory validation study. Certain criteria included in the guidance are allergen-specific. Two food allergens, egg and milk, are used to demonstrate the criteria guidance. These recommendations will be the basis of the harmonized validation protocol for any food allergen ELISA method, whether proprietary or nonproprietary, that will be submitted to AOAC and/or regulatory authorities or other bodies for status recognition. Regulatory authorities may have their own particular requirements for data packages in addition to the guidance in this document. Future work planned for the implementation and validation of this guidance will include guidance specific to other priority allergens.


2012 ◽  
Vol 5 (4) ◽  
pp. 351-356 ◽  
Author(s):  
N. Perši ◽  
J. Pleadin ◽  
A. Vulić ◽  
I. Kmetić ◽  
B. Šimić

The objective of the study was to determine ochratoxin A (OTA) concentrations in serum and urine of pigs during 30-day OTA treatment. OTA was administered orally to the experimental group (n=5) at a dose of 0.78 mg per animal per day, whereas control animals (n=5) were left untreated. OTA concentrations were determined using a validated enzyme-linked immunosorbent assay (ELISA). Method validation resulted in mean recoveries of 93-101% for serum and 98-106% for urine, with acceptable mean inter- and intraday relative standard deviations (<8% for urine and <7% for serum). The ELISA method can be effectively used as a simple screening method to determine OTA exposure in pigs during fattening. The maximum mean OTA concentration in serum was recorded on day 22 (8.75±2.93 ng/ml) and in urine on day 20 (43.56±35.76 ng/ml), indicating significant differences in OTA concentrations between these two matrices.


2004 ◽  
Vol 513 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Rita Serra ◽  
Carla Mendonça ◽  
Luı́s Abrunhosa ◽  
Amedeo Pietri ◽  
Armando Venâncio

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