A Study of the Critical Uncertainty Contributions in the Analysis of PCBs in Ambient Air

<table>Graph showing the relative contribution of each of the four
quantities in (<a href="https://static.hindawi.com/articles/jamc/volume-2008/179498/figures/#eq3">3</a>) to the uncertainty in <svg height="11.3" id="M189" style="vertical-align:-3.22281pt" version="1.1" viewbox="0 0 21.799999 11.3" width="21.799999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.3)">
<g transform="translate(72,-62.96)">
<text transform="matrix(1,0,0,-1,-71.95,66.22)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑣</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.62,63.1)">
<tspan style="font-size: 8.75px; " x="0" y="0">e</tspan>
<tspan style="font-size: 8.75px; " x="3.702096" y="0">x</tspan>
<tspan style="font-size: 8.75px; " x="8.0780964" y="0">t</tspan>
</text>
</g>
</g>
</svg> for the
third approach (gravimetric preparation: calculations in the mass concentration
domain).</table>

Journal of Analytical Methods in Chemistry

fig5

Figure 5

Figure 5: A Study of the Critical Uncertainty Contributions in the Analysis of PCBs in Ambient Air 