# Feeding Stuffs (Sampling and Analysis) Regulations (Northern Ireland) 1999, Paragraph 3: Reagents

Extent: N.I.
Status: prospective

3.1 Toluene.
3.2 Sodium sulphate, anhydrous.
3.3 Buffer solution pH1: dissolve 27.2 g sodium acetate trihydrate in 300 ml 1M hydrochloric acid and add 700 ml water.
3.4 Buffer solution pH 0.65: dissolve 27.2 g sodium acetate trihydrate in 400 ml 1M hydrochloric acid and add 600 ml water.
3.5 Isobutylidenediurea.
3.6 Internal standard solution: dilute 5 ml isopropyl acetate to 100 ml with toluene (3.1).

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Source: https://www.legislation.gov.uk/nisr/1999/296/schedule/2/part/5/paragraph/3 (the official version)
Page: https://openlegislation.uk/feeding-stuffs-sampling-and-analysis-regulations-northern-ireland-1999/schedule-2/part-5/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.