 
          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