material do curso - LSI - USP
material do curso - LSI - USP
material do curso - LSI - USP
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AMPEROMETRIC DETECTION<br />
NO NO 2- NO<br />
-<br />
3<br />
NO + H 2 O HNO 2 + H + + e - Eo = 0.99 V<br />
HNO 2 + H2O<br />
<br />
NO 3- + 3 H + + 2 e - Eo = 0.94 V<br />
NO + ½ O 2 NO 2<br />
[ NO ]<br />
• Reference Electrode: close as possible from<br />
detection electrodes<br />
• Auxiliary Electrode : far / 10 x larger<br />
• Reference Electrode: close as possible<br />
I<br />
SENSITIVITY<br />
f (AREA, Vapp)
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