This survey describes the occurrence of Ethephon (ETH) and Fosetyl in fruits intended for export produced in the São Francisco Valley, Brazil. The determination of these compounds was carried out by the QuPPe-method (Quick Polar Pesticides Method), which was optimised and successfully validated according to the SANTE/11813/2017. From January 2016 to December 2018 a total of 1048 samples were analysed for ETH residues. In 547 (53%) of the samples, residues below the EU MRL of 1 mg kg-1 were present. In 17 samples (2%) ETH residues were above 1 mg kg-1. Overall, the mean ETH level decreased after 2016. Analyses of fosetyl showed that (18%) of 109 mango samples were positive for this compound. Phosphonic acid was found in concentrations ranging from 0.12 to 3.2 mg kg-1 and 5% of the measurements were above the EU MRL of 2 mg kg-1. The results emphasise the quality control of fruits produced in this region.

中文翻译：

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巴西圣弗朗西斯科谷水果中的乙烯利和福塞基残基。

这项调查描述了巴西圣弗朗西斯科谷生产的打算出口的水果中存在乙烯利（ETH）和福塞基的情况。这些化合物的测定采用QuPPe方法（快速极性农药法），该方法已根据SANTE / 11813/2017进行了优化和成功验证。从2016年1月到2018年12月，总共分析了1048个样品的ETH残留量。在547个样本中（53％），存在低于欧盟最高残留限量1 mg kg-1的残留物。在17个样品中（2％），ETH残留量超过1 mg kg-1。总体而言，2016年之后，平均ETH含量下降。对fosetyl的分析显示，在109个芒果样品中，该化合物的阳性率为18％。发现膦酸的浓度范围为0.12至3.2 mg kg-1，5％的测量值高于2 mg kg-1的EU MRL。