Question: For a RDE at (500 mathrm{rpm}) a (0.1 mu mathrm{M}) solution of an iron complex gave a limiting current of (2.73 mathrm{nA}). What would be

For a RDE at $500 \mathrm{rpm}$ a $0.1 \mu \mathrm{M}$ solution of an iron complex gave a limiting current of $2.73 \mathrm{nA}$. What would be the limit of detection for this complex if the electrode were operated at $1000 \mathrm{rpm}$ given a noise level of $0.5 \mathrm{nA}$ ?

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