Abstract
This work illustrates the effect of cetyltrimethylammonium bromide (CTAB) as an antifouling and pre-concentrating agent for electroanalytical measurement of bisphenol A (BPA) on a screen-printed carbon electrode. The calibration graphs are obtained for BPA from 1.0 × 10−6 to 1.0 × 10−5 mol L−1 in B-R buffer pH 8.0 with addition of CTAB in a ratio of [CTAB]/[BPA] 2:1 and the limit of detection was 5.1 × 10−8 mol L−1. Nonylphenol can be also monitored by SWV at a potential 170 mV more positive than bisphenol A in B-R buffer pH 11.0 in the presence of CTAB. The method was successfully applied for BPA determination in river water and sewage without any pretreatment of the samples.
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