Rapid Determination of Catechin Content in Black Tea by Fluorescence Spectroscopy

Table 1

Different methods for the determination of caffeine.

Detection method	LOQ (ng/mL)	Ref.
UHPLC-MS/MS	5	[35]
HPLC	720	[36]
Micellar electrokinetic	500	[37]
Fluorescence	20	This work