Metabolite | λmax(nm) | Retention Times (min) HPLC-System I |
---|---|---|
R-Glucuronide I | 408 | 10.2 |
R-Glucuronide II | 412 | 13.7 |
R-Glucuronide III | 404 | 16.8 |
R-Sulfate I | 412 | 13.6 |
R-Sulfate II | 410 | 15.9 |
R-Acylglucuronide I | 431/436 | 18.6 |
R-Acylglucuronide II | 431/436 | 19.1 |
R-Acylglucuronide III | 431/436 | 19.5 |
R-Diglucuronide (Ether-Ether) | 370 | 6.8 |
OHR-Glucuronide I | 436 | 10.2 |
OHR-Glucuronide II | — | 13.7 |
OHR-Glucuronide III | — | 13.8 |
OHR-Glucuronide IV | — | 16.8 |
OHR-Acylglucuronide I | — | 18.6 |
OHR-Acylglucuronide II | — | 19.1 |
OHR-Acylglucuronide III | — | 19.5 |
Metabolite | λmax(nm) | Retention Times (min) HPLC-System III |
Rhein | 431 | 17.0 |
OHR I | 434 | 16.4 |
OHR II | — | 17.5 |
OHR III | — | 17.9 |
CHR I | — | 17.1 |
CHR II | 510 | 19.7 |
CHR III | 500–520 | 22.4 |
Unknown | 377 | 14.3 |
R, rhein, OHR, hydroxylated rhein, CHR, quinoid oxidation product of rhein (HPLC-system I or HPLC-system III).