Structural and Quantitative Analysis of Three C-Glycosylflavones by Variable Temperature Proton Quantitative Nuclear Magnetic Resonance

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Orientin</td><td class="align_center">Isoorientin</td><td class="align_center">Schaftoside</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">VT-<sup>1</sup>H-qNMR</td><td class="align_center">98.1 (RSD 0.49%)</td><td class="align_center">93.5 (RSD 0.49%)</td><td class="align_center">93.9 (RSD 0.53%)</td></tr><tr><td class="align_left">Mass balance</td><td class="align_center">97.9</td><td class="align_center">94.0</td><td class="align_center">93.1</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Content from VT-<sup>1</sup>H-qNMR (348 K) and mass balance method (%).

Journal of Analytical Methods in Chemistry

tab2

Table 2

Table 2: Structural and Quantitative Analysis of Three C-Glycosylflavones by Variable Temperature Proton Quantitative Nuclear Magnetic Resonance 