Quantification of Myoinositol in Serum by Electrochemical Detection with an Unmodified Screen-Printed Carbon Electrode

Figure 1

DPV curves of (a) 550 mmol/L glycine-NaOH buffer solution (pH 10.3), (b) 5 μL of 160 mmol/L NAD⁺ and 5 μL of 5000 U/L IDH in 40 μL of 550 mmol/L glycine-NaOH buffer solution, (c) 5 μL of 160 mmol/L NAD⁺ and 5 μL of 2 mmol/L MI in 40 μL of 550 mmol/L glycine-NaOH buffer solution, (d) 5 μL of 5000 U/L IDH and 5 μL of 2 mmol/L MI in 40 μL of 550 mmol/L glycine-NaOH buffer solution, (e) 5 μL of 160 mmol/L NAD⁺ and 5 μL of 5000 U/L IDH and 5 μL of 1 mmol/L MI in 40 μL of 550 mmol/L glycine-NaOH buffer solution, and (f) 5 μL of 500 μmol/L NADH in 40 μL of 550 mmol/L glycine-NaOH buffer solution.