Development of a Cloud-Point Extraction Method for Cobalt Determination in Natural Water Samples

<table>Effect of pH on cobalt extraction recovery. Utilized conditions: sample: 25 mL, 100 <i>μ</i>g L<sup>−1</sup>; chelating agent: <svg height="14.375" id="M4" style="vertical-align:-0.3135pt" version="1.1" viewbox="0 0 65.824997 14.375" width="65.824997" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="9.3772497" y="0">0</tspan>
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<tspan style="font-size: 12.50px; " x="29.182001" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="35.433502" y="0">0</tspan>
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<tspan style="font-size: 8.75px; " x="5.99512" y="0">4</tspan>
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</svg> mol L<sup>−1</sup> of K-4-BPDC; surfactant: 0.1% (w/v) of Triton X-114.</table>

Journal of Chemistry

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Figure 1

Figure 1: Development of a Cloud-Point Extraction Method for Cobalt Determination in Natural Water Samples 