<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Tetiana Derkach</style></author><author><style face="normal" font="default" size="100%">Volodymyr Khomenko</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Elemental Composition of the Medicinal Plants Hypericum perforatum, Urtica dioica and Matricaria chamomilla Grown in Ukraine: A Comparative Study</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Atomic absorption spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">Cd contamination</style></keyword><keyword><style  face="normal" font="default" size="100%">Elemental composition</style></keyword><keyword><style  face="normal" font="default" size="100%">Medicinal plants</style></keyword><keyword><style  face="normal" font="default" size="100%">Pb</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">March 2018</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://fulltxt.org/article/513</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">486-491</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Objective:&lt;/strong&gt; To determine concentrations of essential microelements Fe, Cu, Mn and Zn, as well as toxic metals Pb, Cd, Cr and Co, in three herbal remedies and compare the experimental data obtained with available literature data. Materials and &lt;strong&gt;Methods:&lt;/strong&gt; Elemental compositions of three herbal remedies, Chamomile flowers, Urtica folia (nettle) and Hyperichi herba (St John&amp;rsquo;s wort), grown and produced in Ukraine, were studied by flame atomic absorption spectroscopy. &lt;strong&gt;Results:&lt;/strong&gt; The Fe concentration decreases, as well as the Zn and Mn concentrations, increase in going from nettle through chamomile to St John&amp;rsquo;s wort. The Cu content is virtually independent of the plant type. Statistically significant negative correlations between the element concentrations were found in Fe-Mn and Fe-Zn pairs. The studied samples of St John&amp;rsquo;s wort are more contaminated with Cd than other plants, while the highest Pb content is observed in some samples of nettle. &lt;strong&gt;Conclusion:&lt;/strong&gt; The measured levels of both Pb and Cd still secure against overuse of toxic metals with herbal remedies.&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Key words:&lt;/strong&gt; Medicinal plants, Atomic absorption spectroscopy, Elemental composition, Pb, Cd contamination.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">486</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Tetiana Derkach&lt;sup&gt;1*&lt;/sup&gt;, Volodymyr Khomenko&lt;sup&gt;2 &lt;/sup&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Department of Industrial Pharmacy, Kyiv National University of Technologies and Design, Nemyrovicha-Danchenko Str. 2, Kyiv, 01011, UKRAINE.&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Department of Electrochemical Energetics and Chemistry, Kyiv National University of Technologies and Design, Nemyrovicha-Danchenko Str. 2, Kyiv, 01011, UKRAINE.&lt;/p&gt;</style></auth-address></record></records></xml>