The peroxyoxalate CL reaction using bis-(2,4,6,-
trichlorophenyl)oxalate (TCPO) has been applied for the
analysis of carbaryl, carbofuran and propoxur by HPLC in
spiked fruits juice, using dansyl chloride as derivatization
reagent and a previous hydrolysis of the carbamates in
order to produce an alcohol which is derivatized, obtaining
a linear range of 4–1500 g L−1