Stable Isotope Ratio and Elemental Profile Combined with Support Vector Machine for Provenance Discrimination of Oolong Tea (Wuyi-Rock Tea)

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_center" colspan="2">Isotopes</td><td class="align_center" colspan="4">Metallic element</td></tr><tr class="thead"><td class="align_center">Ranking</td><td class="align_center">Variable</td><td class="align_center">Ranking</td><td class="align_center">Variable</td><td class="align_center">Ranking</td><td class="align_center">Variable</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_left"><i>δ</i><sup>2</sup>H</td><td class="align_left">1</td><td class="align_left">Cs</td><td class="align_left">8</td><td class="align_left">Cr</td></tr><tr><td class="align_left">2</td><td class="align_left"><i>δ</i><sup>18</sup>O</td><td class="align_left">2</td><td class="align_left">Cu</td><td class="align_left">9</td><td class="align_left">Ni</td></tr><tr><td class="align_left">3</td><td class="align_left"><i>δ</i><sup>15</sup>N</td><td class="align_left">3</td><td class="align_left">Ca</td><td class="align_left">10</td><td class="align_left">Zn</td></tr><tr><td class="align_left">4</td><td class="align_left"><i>δ</i><sup>13</sup>C</td><td class="align_left">4</td><td class="align_left">Rb</td><td class="align_left">11</td><td class="align_left">Ti</td></tr><tr><td class="align_left"> </td><td class="align_left"> </td><td class="align_left">5</td><td class="align_left">Sr</td><td class="align_left">12</td><td class="align_left">Mg</td></tr><tr><td class="align_left"> </td><td class="align_left"> </td><td class="align_left">6</td><td class="align_left">Ba</td><td class="align_left">13</td><td class="align_left">Mn</td></tr><tr><td class="align_left"> </td><td class="align_left"> </td><td class="align_left">7</td><td class="align_left">Cd</td><td class="align_left">14</td><td class="align_left">Co</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Rank results of isotope and metallic element data<b>.</b>

Journal of Analytical Methods in Chemistry

tab7

Table 7

Table 7: Stable Isotope Ratio and Elemental Profile Combined with Support Vector Machine for Provenance Discrimination of Oolong Tea (Wuyi-Rock Tea) 