Table 1.

The analysis condition of chlorogenic acid, quercetin, and kaempferol. FA—formic acid.

Time (min)	0.1% FA/Water (%)	0.1% FA/Acetonitrile (%)
0	98	2
1.0	98	2
2.0	90	10
4.0	70	30
7.0	50	50
9.0	30	70
11.0	10	90
13.0	0	100
14.0	98	2
16.0	98	2