# Commission Regulation (EEC) No 2568/91 of 11 July 1991 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis, Division 5.1.2

Extent: E+W+S+N.I.

Put 1,0 g of the oil prepared as above into a 25 ml Erlenmeyer flask (3.1) and dissolve in 10 ml of developer mixture (4.10). Leave the solution to stand for at least 15 minutes before silica gel column chromatography.
If the solution is cloudy centrifuge it to ensure optimum conditions for chromatography. (Ready-to-use 500 mg silica gel SPE cartridges can be used).

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Source: https://www.legislation.gov.uk/eur/1991/2568/annex/VII/division/5/division/5.1/division/5.1.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-1991-2568/annex-VII/division-5/division-5.1/division-5.1.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.