RESUMO
This article is aimed to provide a method for the simultaneous analysis of five heavy metals, including Cu, As, Pb, Cd, and Hg, in Chuanxiong Rhizoma and Gastrodiae Rhizoma through ICP-MS. Five heavy metals were determined by an inductively coupled plasma-mass spectrometry method after microwave-assisted digestion. The linear correlation coefficients were all better than 0.999. The lowest limits of quantification for all target elements were 0.003 0.134 ug·L-1, while the recovery values ranged from 80.04% 118.34%. This method was accurate, convenient, rapid, and highly sensitive, and can be applied to determine five heavy metals, including Cu, As, Pb, Cd, and Hg in Chuanxiong Rhizoma and Gastrodiae Rhizoma.
RESUMO
<p><b>OBJECTIVE</b>To study the chemical constituents of the leaves of Naudea officinalis.</p><p><b>METHOD</b>The chemical constituents were separated by column chromatography and semi-preparative HPLC techniques, and their structures were determined by spectral analysis.</p><p><b>RESULT</b>Five compounds were isolated and identified as strictosamide (1), 10-hydroxy strictosamide (2), kaempferol-3-O-rutinoside (3), rutin (4), pumiloside(5).</p><p><b>CONCLUSION</b>Among these compounds, 2, 3, 4 are isolated from the leaves of Naudea officinalis for the first time.</p>