Use of Dielectric Spectroscopy for the Study of Concentration of Glyphosate in Distilled Water

摘要

In this paper, the capability of sensing lowconcentrations of glyphosate in water of two interdigitalcapacitive transducers are analyzed using numerical simulationsand measurements. Each microwave sensor is analyzed usingthe surface electric field produced at the resonance frequency.In addition, the reflection coefficient of each transducersubmerged in water with glyphosate is measured and comparedwith distilled water. Prepared samples with concentrations of1ppm/L (1 part per million over a liter of distilled water) areused for the experimental tests.