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Stripping voltammetry is a trace electrochemical technique in which the current is linearly proportional to concentration. A solution of 1.0x10-7 M Pb(II) gave a current of 0.139 mA. If the noise is found to be 0.00362 mA, what is the detection limit for the determination of Pb(II) and what is the limit for reasonable quantification? the correct answer is : 7.8x10-9 M , 2.6x10-8 M <-- how to get them?

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