5
Response (mV)
Retention Time (min)
0
5
10
15
20
25
30
35
40
10
20
30
40
50
60
70
80
8
12
16 18
Unknown
Figure 2: Chromatograms of (top) butter, (middle) margarine, and (bottom) palm oil sample derivatized by
potassium hydroxide / methanol
Response (mV)
Retention Time (min)
0
5
10
15
20
25
30
35
40
10
20
30
40
50
60
70
80
12
16
18
20
22
23
24 26
Response (mV)
Retention Time (min)
0
5
10
15
20
25
30
35
40
10
20
30
40
50
60
70
80
12
16
18
20
32