were obtained as follows: a) in the absence of AA and UA a detection limit of (34.97 ± 0.08) lM with a
sensitivity of (10.10 ± 0.08) lAmM1b) in the presence of AA and UA a detection limit of
(34.50 ± 0.07) lM with a sensitivity of (17.62 ± 0.15) lAmM1.