From: Simultaneous determination of myricetrin, quercitrin and afzelin in leaves of Cercis chinensis by a fast and effective method of ionic liquid microextraction coupled with HPLC
Factor
A
B
C
D
E
Level
Solid–liquid ratio (Times)
Extractant concentration (mol/L)
Ultrasound time (min)
Centrifugal speed (r/min)
Crush mesh (Mesh)
1
1:20
0.5
20
3000
50
2
1:30
0.7
35
5000
70
3
1:50
0.9
6000
90