Content Handbook P

Outline of method

A known quantity of the MR formulation is transferred to a glass bottle and a specified amount of ethanol-water mixture is added. It is then placed at constant temperature in an upright position. After static extraction for three specified periods, concentrations of remaining pyriproxyfen in the MR formulations are determined by high-performance liquid chromatography.

Scope

This method is intended for use only with pyriproxyfen matrix release (MR) formulations for public health applications.