The CPE-HPLC-Vis method has been shown to be very
attractive for the detection of carbamate pesticides: (1) Compared
with the absorbance maximum of the four carbamate pesticides
(λ = 230 nm), the wavelength positions of derivants are in the
visible region. In this case, the background absorbance of Triton
X-100 does not overlap with the peak of targets.