Nickel Nanoparticle-Modified Electrode for the Electrochemical Sensory Detection of Penicillin G in Bovine Milk Samples

Table 1

Interference study for the determination of Penicillin G under the influence of other competitive ions or salts.

Specie type	Tolerance level (mM)	Signal change (%)
Tetracycline	50	-4.46
Amoxicillin	50	-4.02
Vancomycin	50	-4.85
K^+, Ca^2+, Mg^2+, Zn^2+, Na^+, Fe^2+, Mn^2+	200	3.0
SO4^-2, NO3^-	500	4.0
CO3^-2, Cl^-	1000	5.0