# The Feedingstuffs (Zootechnical Products) Regulations 1999, Paragraph 2


PRINCIPLE
Meticlorpindol is extracted from the feed with methanolic ammonia solution, and a portion of the extract is passed through a column of aluminium oxide onto a column of ion-exchange resin. The meticlorpindol is retained on the resin and interfering substances are removed by washing with 80% methanol. The meticlorpindol is eluted from the resin with 40% acetic acid and the absorbance is measured at 267nm.

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Source: https://www.legislation.gov.uk/uksi/1999/1871/schedule/5/part/II/paragraph/2 (the official version)
Page: https://openlegislation.uk/feedingstuffs-zootechnical-products-regulations-1999/schedule-5/part-II/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.