Skip to main content

Advertisement

Table 2 FTIR recorded performance under accelerated ageing conditions

From: Degradation of insecticides used for indoor spraying in malaria control and possible solutions

Insecticide class Insecticide Heat ageing1 UV degradation2 Humidity3
Organochlorine DDT <50 h <100 h lost
Organophosphate malathion <50 h <50 h -
  fenitrothion <50 h <50 h -
  pirimiphos-methyl <50 h <50 h lost
Carbamates bendiocarb <50 h <50 h lost
  propoxur <50 h <50 h lost
Pyrethroids alphacypermethrin >250 h >250 h present
  bifenthrin <50 h <150 h present
  cyfluthrin >250 h <150 h present
  deltamethrin >250 h <150 h present
  lambdacyhalothrin <150 h <150 h present
Other etofenprox <200 h <150 h present
  1. 1 Oven ageing at 80°C in 50 h intervals; 2Dry cycle UV degradation in a QUV at 63°C and 0.67 W/m2 in 50 h intervals; 3 168 h Humidity ageing at 40°C and 90% H