Collaborative study of a method for the extraction of light filth from ground mace and ground caraway seed
Thrasher, J.J.
Journal - Association of Official Analytical Chemists 59(4): 827-829
1976
ISSN/ISBN: 0004-5756 PMID: 939749 Document Number: 108138
A new method has been developed for the extraction of light filth from ground mace and ground caraway seed. The method uses a 2-step chloroform-isopropanol pretreatment followed by separation of the light filth from 40% isopropanol with mineral oil. The collaborative study resulted in clean filter papers with more reproducible recoveries of light filth elements than the official first action method, 44.116 (b). The method has been adopted as official first action.