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

Table 3

The storage stability of CGIC strips.

Analytes	Storage conditions (°C)	Cutoff value (ng mL^−1)
		Storage time
		0 day	One week	Two weeks	One month	Two months	Three months
Rhein	37	50	50	100	-^a	—	—
	4	50	50	100	—	—	—
Aloe-emodin	37	50	50	50	50	50	100
	4	50	50	50	50	50	100

^aNot detected.