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首页> 外文期刊>New Journal of Chemistry >A novel switchable solvent liquid-phase microextraction technique based on the solidification of floating organic droplets: HPLC-FLD analysis of polycyclic aromatic hydrocarbon monohydroxy metabolites in urine samples
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A novel switchable solvent liquid-phase microextraction technique based on the solidification of floating organic droplets: HPLC-FLD analysis of polycyclic aromatic hydrocarbon monohydroxy metabolites in urine samples

机译：一种新型可切换溶剂液相微萃取技术，基于浮动有机液滴的凝固：HPLC-FLD分析尿液中多环芳烃单羟基代谢物的HPLC-FLD分析

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摘要

A novel switchable solvent liquid-phase microextraction technique, based on the solidification of floating organic droplets (SS-LPME-SFO), was developed for the pretreatment of aqueous samples. In this process, octanoic acid was selected as the extractant due to its low density, moderate melting point, and ability to switch between hydrophilic and hydrophobic characteristics. This technique has been successfully applied in the enrichment of five polycyclic aromatic hydrocarbon monohydroxy metabolites (OH-PAHs) in urine samples. Furthermore, a HPLC-FLD detection procedure was established to analyze the samples. A series of parameters affecting the extraction were systematically studied. Under the optimal conditions, all analytes showed good linearity within the studied range, and the values of the correlation coefficient (R-2) were higher than 0.99. The limits of detection (LODs) and the limits of quantitation (LOQs) were within the range of 0.018-0.076 mu g L-1 and 0.059-0.25 mu g L-1, respectively. The method also achieved good recoveries, ranging between 88.5% and 102.5%. Overall, the method is highly cost-effective, environmentally-friendly, fast and efficient. This study proposes an efficient extraction method for the analysis of most organic pollutants in complex environmental aqueous phases.
机译：一种基于浮动有机液滴的凝固（SS-LPME-SFO）的新型可切换溶剂液相微萃取技术，用于预处理水性样品。在该方法中，选择辛酸作为萃取剂，由于其低密度，中等熔点，以及在亲水性和疏水特性之间切换的能力。该技术已成功应用于尿液样品中五种多环芳烃单羟基代谢物（OH-PAHS）的富集。此外，建立了HPLC-FLD检测程序以分析样品。系统地研究了影响提取的一系列参数。在最佳条件下，所有分析物在研究范围内显示出良好的线性度，相关系数（R-2）的值高于0.99。检测限（LOD）和定量限的限制（LOQs）分别在0.018-0.076μg和0.059-0.25μg1-1的范围内。该方法还实现了良好的回收率，范围在88.5％和102.5％之间。总体而言，该方法具有高度成本效益，环保，快捷，高效。本研究提出了一种有效的提取方法，用于分析大多数有机污染物在复杂的环境水阶段。

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  • 来源
    《New Journal of Chemistry》 |2020年第7期|共7页
  • 作者

    Wang Xu; Sun Zhiwei; Luo Xianzhu; Wang Kaifeng; Zhang Shijuan; Ji Zhongyin; Gao Yue; You Jinmao;

  • 作者单位

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

    Qufu Normal Univ Key Lab Life Organ Anal Shandong Prov Qufu 273165 Shandong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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