Reversed-phase high performance liquid chromatographic determination of carbaryl in postmortem specimens

A reversed-phase high performance liquid chromatographic (HPLC) method has been developed for the analysis of carbaryl in postmortem samples. It involves the use of an aqueous acetonitrile mobile phase to give rapid, reproducible analyses and an external standard for quantitation. Two separate extraction procedures (Extrelut column and protein precipitation with acetonitrile) are described; each one is suited to a particular substrate and each one leads to an almost complete recovery of carbaryl from that substrate.