Research Article

The New TLC Method for Separation and Determination of Multicomponent Mixtures of Plant Extracts

Table 1

The program used for four-step gradient elution for the development in second dimension for Juniperi Oleum.

Mobile phaseStep number 1Step number 2Step number 3Step number 4

Toluene99.097.096.092.0
Ethyl acetate 1.03.04.08.0
Development distance (cm)10.09.58.06.0

The composition is given in % v/v.