Pb. Mason et al., HELIUM MICROWAVE-INDUCED PLASMA-ATOMIC EMISSION DETECTION FOR LIQUID-CHROMATOGRAPHY UTILIZING A MOVING BAND INTERFACE, Analytical chemistry, 65(19), 1993, pp. 2596-2600
A moving band interface is used to separate HPLC solvent from analyte
before introduction into a microwave-induced plasma atomic emission de
tector. Spectral scans indicate that all detectable solvent is removed
prior to analyte introduction. Analyte memory effects are not detecta
ble. Chlorine element selective detection limits are 140,410, 220, and
770 pg/s for 9-chlorofluorene, p-chlorobiphenyl, 4-chlorobenzophenone
, and alpha,alpha-dichloro-o-oxylene, respectively. If the vaporizatio
n region is heated significantly, chlorine selective response is depen
dent upon the boiling point of the compound due to analyte volatilizat
ion before it reaches the detector.