A Novel Colorimetric Biosensor for Determination of Cationic Surfactants (original) (raw)

2017, GISAP:Physics, Mathematics and Chemistry

AI-generated Abstract

A novel enzymatic kinetic method for the detection of cationic surfactants, specifically Benzalkonium chloride (BAC), in water solutions has been developed. Utilizing a colorimetric biosensor, the method measures the rate of change in light absorption due to the oxidation of p-Phenetidine facilitated by peracetic acid. The method presents a low limit of quantitation (LOQ) of 6·10^-7 mol/L and demonstrates satisfactory reproducibility and accuracy with a relative standard deviation (RSD) of less than or equal to 3.34%. The results indicate the potential of this method for environmental monitoring applications to detect toxic surfactants.

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