Nylon membrane as a fluorimetric probe for the herbicide bentazone.
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.
Instituto de Química Rosario (CONICET-UNR), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina.
Jessica P
JP
Chiarandini
Graciela M
GM
Escandar
D001581:Benzothiadiazines / Q000302:isolation & purification*; D005470:Fluorometry / Q000379:methods*; D006540:Herbicides / Q000302:isolation & purification*; D057230:Limit of Detection; D008567:Membranes, Artificial; D009757:Nylons / Q000737:chemistry*; D014867:Water / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*
D001581:Benzothiadiazines; D006540:Herbicides; D008567:Membranes, Artificial; D009757:Nylons; D014874:Water Pollutants, Chemical; D014867:Water; C002003:bentazone