Flameless atomic absorption spectrophotometric determination of Vendex, an organic tin miticide, in apples, oranges, and tea leaves.
A method is described for the determination of an organic tin insecticide, Vendex or hexakis(2-methyl-2-phenylpropyl)distannoxane (HMPD). Tin compounds are extracted from the sample homogenate with ethyl ether containing 1% acetic acid. HMPD and its degradation products are separated through a silica gel column, and analyzed by an atomic absorption spectrophotometer coupled with a heated graphite atomizer. By this technique, as little as 5 ng HMPD and its degradation products can be determined with an average recovery of 67-96%.
D002957:Citrus / Q000032:analysis; D005638:Fruit / Q000032:analysis*; D007306:Insecticides / Q000032:analysis*; D009947:Organotin Compounds / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis; D013054:Spectrophotometry, Atomic; D013662:Tea / Q000032:analysis*
D007306:Insecticides; D009947:Organotin Compounds; D010573:Pesticide Residues; D013662:Tea; C022071:vendex