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J. Braz. Chem. Soc. vol.17 número1

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Figure 4 shows the influence of the flow rate on the peak currents for reduction of atrazine at the mercury electrode.
Figure 4. Influence of flow rate on the peak currents of square voltammograms of a 2.0  μ g mL -1  atrazine solution prepared in soil  solu-tion in 40 mmol L -1  BR buffer and 0.25 mol L -1  NaNO 3  (∆); and 0.5 μg mL -1  atrazine solution in 40 mmol L -1
Table 1. Effect of possible interferents on peak current observed for an 0.10 μg L -1  atrazine solution prepared in 40 mmol L -1  BR buffer at pH 2.0 in medium of 0.25 mol L -1  NaNO 3
Table 2. Atrazine concentration values in 0.010 mol L -1  CaCl 2  soil solu- solu-tions obtained by the proposed CF-SWV method and HPLC

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