Table 2. Detection Results of Six β-Agonists by the GCE/GNP/RAC Immunosensor.

β-agonist	linear range (ng·mL–1)	correlation coefficient	detection limit (ng·mL–1)
CL	5–7000	0.992	0.1
SAL	50–5000	0.989	0.1
RAC	1–7000	0.988	0.1
TER	10–5000	0.990	0.1
MAB	1–7000	0.996	0.1
TUL	10–5000	0.993	0.1