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Mass spectrometric parameters of the three compounds and IS.
| Compounds | Precursor Ion (m/z) |
Product Ion (m/z) |
Fragment (V) |
Collision Energy (V) |
Polarity |
|---|---|---|---|---|---|
| ZGI | 784.5 | 437.4 | 150 | 10 | positive |
| DGE | 652.5 | 455.4 | 130 | 20 | positive |
| PA | 471.5 | 453.2 | 190 | 30 | negative |
| IS | 418.9 | 342.8 | 78 | 18 | positive |
