| 摘要 |
In various aspects, the present teachings provide labeling reagents and sets of labeling reagents containing one or more heavy atom isotopes for the relative quantitation, absolute quantitation, or both, of hydroxylated compounds including, but not limited to, hydroxylated ring containing compounds, steroids and sterols. In various aspects, the present teachings also provide methods for the analysis hydroxylated compounds including, but not limited to, hydroxylated ring containing compounds, steroids and sterols my MS/MS methods, in particular using mass differential tags. |
