Analytical and Bioanalytical Chemistry 2012-02-01

Nylon membrane as a fluorimetric probe for the herbicide bentazone.

Jessica P Chiarandini, Graciela M Escandar

Index: Anal. Bioanal. Chem 402(6) , 2221-5, (2012)

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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.