Abstract
Abstract A simple and rapid field test is described for the vatside determination of toxaphene and lindane in aqueous emulsions used for the eradication of ectoparasites in livestock. With appropriate modification, the test should also be useful for aqueous emulsions of other chlorinated hydrocarbons. The chlorinated hydrocarbon is “salted-out” of emulsion and extracted into an organic solvent, and the extract is reacted with sodium biphenyl, which strips the molecule of organic halogen. After solution of reaction products in a glycol-alcohol solvent and adjustment of pH, the resultant chloride is titrated with silver nitrate to a pink end point with 2″,7″-dichlorofluorescein. All procedures except extraction are carried out in one vessel and there is no need for special equipment. A field worker can perform an analysis in 15 minutes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
