Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Followed by Gas Chromatography-Electron Capture Detector for Determination of Some Pesticides in Water Samples

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td align="left">Analyte</td><td align="center">Linear range (<i>μ</i>g L<sup>−1</sup>)</td><td align="center">LOD<sup>a</sup> (<i>μ</i>g L<sup>−1</sup>)</td><td align="center">R.S.D. (%)<sup>b</sup></td><td align="center">PF<sup>c</sup></td><td align="center"><i>r </i><sup>
										d</sup></td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td align="left">Endosulfan</td><td align="center">0.1–100</td><td align="center">0.05</td><td align="center">3.2</td><td align="center">905</td><td align="center">0.9987</td></tr><tr><td align="left">Butachlor</td><td align="center">0.05–100</td><td align="center">0.006</td><td align="center">5.1</td><td align="center">915</td><td align="center">0.9954</td></tr><tr><td align="left">Dichlorvos</td><td align="center">0.05–100</td><td align="center">0.008</td><td align="center">6.7</td><td align="center">802</td><td align="center">0.9975</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td><sup>
									a</sup>LOD: limit of detection for <svg height="10.9125" id="M11" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 55.137501 10.9125" width="55.137501" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝑆</tspan>
<tspan style="font-size: 12.50px; " x="8.1269503" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="11.602784" y="0">𝑁</tspan>
<tspan style="font-size: 12.50px; " x="25.706167" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="37.746555" y="0">3</tspan>
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</svg>.<br/><sup>
									b</sup>RSD: relative standard deviation (<svg height="11.1" id="M12" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 35.099998 11.1" width="35.099998" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝑛</tspan>
<tspan style="font-size: 12.50px; " x="9.6773224" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="21.71771" y="0">5</tspan>
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</svg>).<br/><sup>
									c</sup>Preconcentration factor at concentration of 10 <i>μ</i>g L<sup>−1</sup>.<br/><sup>
									d</sup>Correlation coefficient.<br/></td></tr></table>

Quantitative results of DLLME-SFO and GC-ECD of pesticides.

Chromatography Research International

tab1

Table 1

Table 1: Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Followed by Gas Chromatography-Electron Capture Detector for Determination of Some Pesticides in Water Samples 

Table 1 | Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Followed by Gas Chromatography-Electron Capture Detector for Determination of Some Pesticides in Water Samples 