Determination of residues from the herbicide 2,4-dichloro-1-(4-nitrophenoxy)-benzene in rice and wheat by electron capture gas-liquid chromatography.
A residue method has been developed which is capable of determining not only 2,4-dichloro-1-(4-nitrophenoxy)-benzene but a majority of the known metabolites of this compound. The residues are reduced to a common amine intermediate which is further derivatized and quantitatively measured by electron capture gas-liquid chromatography. The method is sensitive to 0.01 ppm and is readily suited to routine use. The method has been used on rice and wheat samples.
D002722:Chlorobenzenes / Q000032:analysis; D002849:Chromatography, Gas / Q000379:methods; D006540:Herbicides / Q000032:analysis*; D008722:Methods; D009578:Nitrobenzenes / Q000032:analysis*; D012275:Oryza / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D010647:Phenyl Ethers / Q000032:analysis*; D014908:Triticum / Q000032:analysis*
D002722:Chlorobenzenes; D006540:Herbicides; D009578:Nitrobenzenes; D010573:Pesticide Residues; D010647:Phenyl Ethers