Friday, November 20, 2020

Request for participants in collaborative trial for ISO TS 23942: Animal and vegetable fats and oils – “Determination of hydroxytyrosol and tyrosol in extra virgin olive oils – Reverse phase high performance liquid chromatography (RP-HPLC)”


ISO TS 23942 was published as a Technical Standard in July 2020 because there was insufficient validation data available that represented international countries and regions. The Ballot to approve the project to convert ISO TS 23942 to an International Standard after international validation data has been obtained is currently in progress (Draft Res N 1560). Should the ballot be approved (ending 8 January 2021) an international collaboration study will be performed.  

The UNI mirror Committee on Oils and Fats is preparing to organize the international collaborative validation study to obtain the required international validation data. The project, in brief, will entail the following:

  • 6 test samples of olive oil are expected to be dispatched by 8 March 2021
  • One of the 6 samples will be a pre-analyzed sample with a known hydroxytyrosol and tyrosol content and the chromatogram will be enclosed to be used by the laboratories as a trial sample
  • Results are to be reported within 8 weeks after sample arrival (around 3 May 2021)

Laboratories who are interested in taking part in the international validation of this method are invited to contact Project Leader, Dr Peirangela Rovellini, at and will need to fill out a participant form by 14 January 2021

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