表 1.
未知物1峰纯度检查与光谱相似度检查结果
| Analyte | Additive proportion |
Purity angle |
Purity threshold |
Results of peak purity test |
PDA matching angle |
PDA matching threshold |
Results of spectra similarity test |
|---|---|---|---|---|---|---|---|
| Acid test solution | - | 0.225 | 0.282 | All of purity angles are less than the threshold, which prove it is a peak of pure compound. | 0.435 | 1.158 | All of the PDA matching angles are less than the threshold, which prove its spectra is similar to the standard’s. |
| Acid test solution-standard solution of menadione sodium bisulfite | 1∶4 | 0.084 | 0.287 | 0.091 | 1.158 | ||
| 1∶1 | 0.108 | 0.284 | 0.221 | 1.158 | |||
| 4∶1 | 0.228 | 0.297 | 0.328 | 1.158 |