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Fig 8 curve c, shows the CV for cysteine (10mM) oxidation at the modified electrode. If you measure the current at 0.4 V, it is about 25 uA. Fig. 9 shows the amperogram for successive additions of 1mM cysteine measured at 0.4 V. After 10 additions, where the total conetrations is about 10 mM, the current observed is 4 uA only. Why this discrepancy ? ÇëÎÊÒ»ÏÂÔõô»Ø´ðѽ£¡¼±Ñ½ ! лл! |
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