Use of simultaneous dual-probe microdialysis for the determination of pesticide residues in a jade plant (Crassula ovata).
A microdialysis application for the sampling of plant pesticide residues has been developed utilizing two probes with differing perfusate rates simultaneously inserted into symmetric components of a sampling system. A simple empirical equation is proposed to calculate analyte concentrations in a semi-solid matrix using two different dialysate concentrations. In vitro application yielded excellent correlations between the calculated and spiked concentrations. Subsequent in vivo application of this technique for the determination of pesticide distributions in leaves of a jade plant (Crassula ovata) indicated the utility of this approach in complex living matrices.
Zhou
Simon Ningsun
SN
Department of Chemistry, University of Waterloo, Waterloo, ON, Canada N2L 3G1.
Oakes
Ken D
KD
Servos
Mark R
MR
Pawliszyn
Janusz
J
D002851:Chromatography, High Pressure Liquid; D029627:Crassulaceae / Q000737:chemistry*; D004784:Environmental Monitoring / Q000379:methods; D017022:Flow Injection Analysis; D017551:Microdialysis / Q000379:methods*; D010573:Pesticide Residues / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*
D010573:Pesticide Residues; D012989:Soil Pollutants