MT 65 - Organic chlorine in pesticides n aqueous emulsions

 

Content Handbook F

 

Outline of method

The pesticide is absorbed on granulated carbon, which is then extracted with hydrocarbon-alcohol solvent mixture. The extracted material is reacted with sodium and the chloride ion produced is determined by potentiometric titration with standard silver nitrate solution.



Scope

The method is suitable for aqueous emulsions produced from emulsion concentrates of HCH, lindane, DDT, endrin, HEOD, and HHDN. It is probably suitable for other organochlorine pesticides.