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首页> 外文期刊>Mycotoxin Research >Determination of ochratoxin A in liquorice products using HPLC-based analytical methods. Part II: harmonised method and method validation study.
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Determination of ochratoxin A in liquorice products using HPLC-based analytical methods. Part II: harmonised method and method validation study.

机译：使用基于HPLC的分析方法测定甘草产品中的曲霉毒素A。第二部分：统一方法和方法验证研究。

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摘要

On the basis of the outcome of an European proficiency test series conducted on behalf of the CAOBISCO (Association of the Chocolate, Biscuit and Confectionery Industries of the EU) expert group on ochratoxin A, a new harmonised method was developed for the analysis of ochratoxin A in liquorice extracts. This method works without the use of halogenated solvents because, as the proficiency test showed, an aqueous extraction solution can be used instead of, for example, chloroform, whose use is restricted in the EU. The main objective of this method validation study was to check the performance of this harmonised method. To carry out the method validation study, a set of three different test samples (one liquorice powder and two liquorice pastes) and a liquorice powder sample with an indicated range of ochratoxin A (a so-called sunshine sample) was distributed to 21 laboratories in ten countries throughout Europe and to one laboratory in the USA. The study was evaluated according to internationally recognised guidelines. In terms of its repeatability and reproducibility for determining ochratoxin A in liquorice extracts with a relative standard deviation for repeatability (RSDr) of between 6.68 and 19.95 and a relative standard deviation for reproducibility (RSDR) of between 17.39 and 29.08 the performance of the harmonised method was found to be in the accepted range of the EU directive for the analysis of mycotoxins in several foodstuffs. (c)Society for Mycotoxin Research and Springer 2010.
机译：在代表CAOBISCO（欧盟巧克力，饼干和糖果工业协会）关于曲霉毒素A的欧洲能力测试系列的结果的基础上，开发了一种用于分析曲霉毒素A的新的统一方法在甘草提取物中。此方法无需使用卤化溶剂即可工作，因为如能力验证所示，可以使用水性萃取液代替氯仿，后者在欧盟受到限制。该方法验证研究的主要目标是检查这种协调方法的性能。为了进行方法验证研究，将一组三种不同的测试样品（一种甘草粉和两种甘草糊）和一种含有指定范围的of曲霉毒素A的甘草粉样品（所谓的阳光样品）分配给了21个实验室。欧洲十个国家和美国一个实验室。该研究是根据国际公认的准则进行评估的。就测定甘草提取物中曲霉毒素A的可重复性和可重复性而言，统一方法的性能，其可重复性的相对标准偏差（RSDr）在6.68和19.95之间，而可重复性的相对标准偏差（RSDR）在17.39和29.08之间。被发现在欧盟指令中可接受的范围内，用于分析几种食品中的霉菌毒素。 （c）霉菌毒素研究学会和Springer 2010。

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