Simultaneous Determination of Three Coumarins in <i>Angelica dahurica</i> by <sup>1</sup>H-qNMR Method: A Fast and Validated Method for Crude Drug Quality Control

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Component</td><td class="align_center">Precision</td><td class="align_center">Repeatability</td><td class="align_center">Stability</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Imperatorin</td><td class="align_center">0.848</td><td class="align_center">1.258</td><td class="align_center">1.639</td></tr><tr><td class="align_left">Byakangelicin</td><td class="align_center">0.751</td><td class="align_center">1.892</td><td class="align_center">1.692</td></tr><tr><td class="align_left">Oxypeucedanin</td><td class="align_center">0.675</td><td class="align_center">1.202</td><td class="align_center">1.263</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Precision, repeatability, and stability of three coumarins in <i>A. dahurica</i> by using the <sup>1</sup>H-qNMR method (unit: %).</div>

Journal of Analytical Methods in Chemistry

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Table 3

Table 3: Simultaneous Determination of Three Coumarins in <i>Angelica dahurica</i> by <sup>1</sup>H-qNMR Method: A Fast and Validated Method for Crude Drug Quality Control 

Table 3 | Simultaneous Determination of Three Coumarins in Angelica dahurica by 1H-qNMR Method: A Fast and Validated Method for Crude Drug Quality Control 