Development of a Colloidal Gold Immunochromatographic Strip for the One-Step Evaluation of the Total Content of Rhein and Aloe-Emodin in Rhubarb

Table 2

Comparison of analytical performances of CGIC strips for rhein and aloe-emodin with other reported methods.

Analytes	Methods	Detection limit/cutoff value (ng mL^−1)	Detection time (min)	Sample pretreatment	Test cost	Organic reagent	Reference
Rhein and aloe-emodin	HPLC	7.8∼17.9	20	Tedious	Expensive	Necessary	[11]
Rhein and aloe-emodin	UPLC	40∼60	3	Tedious	Expensive	Necessary	[12]
Rhein and aloe-emodin	CE	500∼1230	10	Tedious	Expensive	Necessary	[13]
Rhein and aloe-emodin	^1H NMR	980∼2020	10	Tedious	Expensive	Necessary	[14]
Rhein and aloe-emodin	NIS	-^a	64	Simple	Expensive	Unnecessary	[15]
Rhein	ELISA	20	70	Simple	Economical	Unnecessary	[17]
Rhein	QD-LCS	80	10	Simple	Economical	Unnecessary	[18]
Rhein and aloe-emodin	CGIC strips	50	6	Simple	Economical	Unnecessary	This work

^aNot detected.