RESUMO
Objective: To compare the automatic potentiometry and oxidation-reduction titration methods in determining easily oxidized substances in infusion sets for single use. Methods: The easily oxidized substances in infusion sets for single use were determined using two methods. The precise test and the Student's test were be carried out. Results: Both of the methods could satisfy the analytic demand. The relative standard deviation of automatic potentiometry is 0.06%; the relative standard deviation of oxidation-reduction titration method is 0.07%; when α was 0.05, P value was 0.92. There was no statistically significant difference between the two methods. Conclusion: Automatic potentiometry method can substitute oxidation-reduction titration methods.
