Nylon membrane as a fluorimetric probe for the herbicide bentazone
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Abstract
The fluorimetric signal produced by bentazone retained in selected solid surfaces was investigated. Among the different tested supports, only a microporous nylon membrane produced the desired signal. The quantitative study was carried out by second-order calibration using parallel factor analysis, allowing the determination in a highly interfering medium. A detection limit of 0.4 ng mL−1, a prediction relative error of 8%, and a sample frequency of ten samples per hour were obtained in spiked natural waters using green analytical chemistry principles.
Keywords
Optical fluorimetric probe Nylon membrane Second-order calibration BentazoneNotes
Acknowledgments
The authors gratefully acknowledge the Universidad Nacional de Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas (Project PIP 1950) and Agencia Nacional de Promoción Científica y Tecnológica (Project 2010-0084) for financially supporting this work.
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