Sample

Ergot alkaloids

Retention time (min)

Theoretical monoisotopic mass

Determined monoisotopic mass

Score mass

Differential mass (ppm)

Fragment m/z 223.1283

1 Elution silica

None

2 Elution aptamer M3.2

Ergosine Ergokryptine

5.55 5.7

547.2794 575.3107

547.2874 575.3085

98.11 92.05

−1.88 3.88

Yes Yes

3 Elution aptamer L5.5

Ergosine Ergokryptine Ergocornine

5.59 5.8 5.669

547.2794 575.3107 561.2951

547.2797 575.3112 561.2916

99.88 99.71 81.13

−0.48

−0.72 6.2

Yes Yes Yes