A bare graphite-polyurethane composite was evaluated in the tetracycline (TC) determination in natural water samples. Using differential pulse voltammetry (DPV), a linear response was observed in the range of 4.00-40.0 μmol L-1 with limit of detection of 2.80 μmol L-1, without the need of surface renewing between successive runs. During the tetracycline determination in water samples, recoveries between 92.6 and 100% were found. The results for TC determination in water samples after a pre-concentration stage agreed with spiked value at a 95% confidence level according to student t-test. © 2012 Sociedade Brasileira de Química.
CITATION STYLE
Calixto, C. M. F., Cervini, P., & Cavalheiro, É. T. G. (2012). Determination of tetracycline in environmental water samples at a graphite-polyurethane composite electrode. Journal of the Brazilian Chemical Society, 23(5), 938–943. https://doi.org/10.1590/S0103-50532012000500020
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