Method Linear range (μg·mL-1) Limit of detection (μg·mL-1) Reference
HPLC 6.41-102.60 - 21
RP - HPLC 3.181-101.8 - 22
HPLC - FLD 0.2560~25.60 - 23
CPE - HPLC 0.126-16.2 - 24
ILS-β-CDCP SPE/UV 0.1-20.00 0.02 The proposed method
Table 2: Comparison with previously reported methods.