Application of a Prototype Microfluidic Device with MS for the Screening of Pesticide Residues in Food Analyses

摘要

Significant sensitivity gains are observed due to the improved ionisation efficiency of the microfluidic device. Linearity for the pesticides using matrix matched standards produced correlation coefficients of 0.95 and above. Sensitivity improvements for iKey vs UPLC were shown to have a factor improvement x5 to x45 for 80% of the pesticides when analysed from solvent standards. Sensitivity improvements for iKey vs UPLC were shown to have a factor improvement x5 to x60 for 80% of the pesticides when analysed from matrix matched pesticides.