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Fig. 1.2.12.
Liquid chromatograms of: (a) a standard mixture of 23 N-methylcarbamates; and (b) an orange
sample fortified with 23 N-methylcarbamates at 0.13 mg/kg level after
extraction and clean-up on aminopropyl-bonded silica SPE column (by ASPEC): 1, butocarboxim
sulfoxide; 2, aldicarb sulfoxide; 3, butoxycarboxim; 4, aldicalb sulfone; 5, oxamyl, 6, methomyl; 7
ethiofencarb sulfoxide; 8, thiofanox sulfoxide; 9, 3-hydroxycarbofuran
ethiofencarb sulfone; 10, methiocarb sulfoxide; 11, dioxacarb, thiofanox sulfone, tranid; 12,
methiocarb sulfone, butocarboxim; 13, aldicarb; 14, 3-ketocarbofuran, cloethocarb; 15, propoxur, 16,
carbofuran, bendiocarb; 17, carbaryl, thiofanox; 18, ethiofencarb; 19, isoprocarb, landrin; 20,
carbanolate; 21, methiocarb; 22, promecarb; 23, bufencarb, mexacarbate, aminocarb. (Reproduced
from ref. 205; J. AOAC Int., (1992) 75, p. 1067, Fig. 1.).

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