For analytical determination of rotenone:

UC Davis Analytical Lab
University of California Davis, California
95616-5270
Phone: (530) 752-0147
Fax: (530) 752-9892
Email: anlab@ucdavis.edu

CIA Labs
1717 Commercial, P.O. Box 3022
St. Joseph, MO 64503
Phone: (816) 232-8007