# Fourth Commission Directive of 11 October 1985 on the approximation of the laws of the Member States relating to methods of analysis necessary for checking the composition of cosmetic products (85/490/EEC), Division 2: PRINCIPLE

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

This identification is done by thin layer chromatography on silica gel with a fluorescent indicator and detection of the free primary amine group by formation of a diazo dye on the plate.

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Source: https://www.legislation.gov.uk/eudr/1985/490/annex/division/1/division/A/division/2 (the official version)
Page: https://openlegislation.uk/eu-directive-1985-490/annex/division-1/division-A/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.