# Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down the methods of sampling and analysis for the official control of feed (Text with EEA relevance), Division 3.9

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

Mobile phase for HPLC: mixture of methanol (3.3) and water, e.g. 980 + 20 (v + v). The exact ratio will be determined by the characteristics of the column employed.

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/IV/division/A/division/3/division/3.9 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-IV/division-A/division-3/division-3.9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.