Abstract:
The carbamate pesticide, carbaryl, was quantitatively
studied using fast atom bombardment mass spectrometry (FAB-MS).
Mass spectra were obtained in the positive ion-mode using both
2-nitrophenyloctyl ether (NPOE) and 3-nitrobenzyl alcohol
(NBA) as matrix liquids. The sample was applied by three
different techniques; simple mixing, solvent mixing and surface
precipitation.
Smaller volumes of matrix liquid were found to produce
more favourable ion currents. Detection limits were largely
independent of the matrix or application technique used. The
relationship between ion current and the mass of analyte was
found to be intricately related to the choice of matrix liquid.
