Investigation and Discrimination of Ballpoint Pen Inks by Analytical Techniques and Chemometrics

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Color of ballpoint pen</td><td class="align_center">DP with UV/Vis data cluster analysis</td><td class="align_center">DP with FTIR data cluster analysis</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Blue</td><td class="align_center">0.98</td><td class="align_center">0.99</td></tr><tr><td class="align_left">Black</td><td class="align_center">0.99</td><td class="align_center">1</td></tr><tr><td class="align_left">Red</td><td class="align_center">1</td><td class="align_center">1</td></tr><tr><td class="align_left">Green</td><td class="align_center">1</td><td class="align_center">1</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td><div>DP: discriminating power; UV/Vis: ultraviolet visible spectroscopy; FTIR: Fourier transform infrared spectroscopy.<br/></div></td></tr></table>

<div>DP calculations of ballpoint pen inks with cluster analysis.</div>

International Journal of Analytical Chemistry

tab5

Table 5

Table 5: Investigation and Discrimination of Ballpoint Pen Inks by Analytical Techniques and Chemometrics 