Milk and milk products. Determination of residues of organochlorine compounds (pesticides) - Test methods for crude extract purification and confirmation

BS ISO 3890-2:2009 Milk and milk products. Determination of residues of organochlorine compounds (pesticides). Test methods for crude extract purification and confirmation

BS ISO 3890-2 specifies test methods for the purification of the crude extracts obtained by the general methods given in BS ISO 3890-2. It also gives recommended methods for the determination of the residues of organochlorine compounds in milk and milk products, together with confirmatory tests and clean-up procedures.

Contents BS ISO 3890-2:

Foreword

1 Scope

2 Normative references

3 Method A: Liquid-liquid partitioning with acetonitrile and clean-up on a Florisil column

4 Method B: Liquid-liquid partitioning with dimethylformamide (DMF) and clean-up on an alumina column

5 Method C: Liquid-liquid partitioning with dimethylformamide (DMF) and clean-up on a Florisil1) column

6 Method D: Column chromatography on aluminium oxide of precisely defined activity

7 Method E: Column chromatography on alumina column

8 Method F: Column chromatography on partially deactivated Florisil1)

9 Method G: Column chromatography on partially deactivated silica gel

10 Method H: Gel-permeation chromatography

11 Confirmatory tests and additional clean-up procedure

12 Additional clean-up procedure

Bibliography