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首页> 外文期刊>RSC Advances >Phenyl carbamate functionalized zinc oxide nanorods for paper-based thin film microextraction
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Phenyl carbamate functionalized zinc oxide nanorods for paper-based thin film microextraction

机译：苯基氨基甲酸酯官能化含纸薄膜微萃取的氧化锌纳米棒

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摘要

In this work, phenyl carbamate functionalized zinc oxide nanorods were fabricated on a cellulose filter paper and employed as a novel and low cost sorbent in a thin film microextraction (TFME) technique. The modified cellulose paper was applied for the extraction of three phenylurea herbicides from different water samples. Liquid chromatography with diode array UV-vis detection was used for analyte detection. Characterization of the fabricated paper-based TFME sorbent was performed by scanning electron microscopy and elemental analysis. The effect of significant experimental parameters in the TFME technique including type and volume of desorption solvent, desorption time, shaking rate for extraction and desorption, salt addition and extraction time were studied and optimized. The extraction capability of phenyl carbamate functionalized zinc oxide paper was also compared with the unmodified paper and papers modified with ZnO and phenyl isocyanate. The linear range of the method for neburon, monuron and linuron was in the range of 0.2-20, 0.5-50 and 0.2-20 mg L-1, respectively. The detection limits were 0.04, 0.05 and 0.13 mg L-1 for neburon, linuron and monuron, respectively. The precision of the method was less than 6.8% for all analytes. Film-to-film reproducibility varied between 8.1 and 10.8% (relative standard deviation). The method was validated for the determination of analytes in real water samples. Recoveries between 92 and 106% were achieved.
机译：在这项工作中，在纤维素滤纸上制造苯基氨基氨基酯官能化氧化锌纳米棒，并以薄膜微萃取（TFME）技术为一种新颖的和低成本的吸附剂。将改性的纤维素纸用于从不同水样中提取三种苯脲除草剂。使用二极管阵列UV-VI检测液相色谱法用于分析物检测。通过扫描电子显微镜和元素分析来进行制造的纸基TFME吸附剂的表征。实验性参数在TFME技术中的影响包括解吸溶剂的类型和体积，解吸时间，用于提取和解吸的振荡速率，盐加法和提取时间进行了优化。还将苯基氨基氨基官能化氧化锌纸的提取能力与用ZnO和苯基异氰酸酯改性的未改性的纸和纸张进行了比较。 Neburon，Monuron和Linuron方法的线性范围分别为0.2-20,0.5-50和0.2-20mg L-1。对于Neburon，Linuron和Monuron，检测限为0.04,0.05和0.13mg L-1。所有分析物的方法的精度小于6.8％。薄膜到薄膜再现性在8.1和10.8％之间变化（相对标准偏差）。该方法验证了真实水样中分析物的测定。达到92到106％之间的回收率。

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  • 来源
    《RSC Advances》 |2017年第79期|共6页
  • 作者

    Saraji Mohammad; Mehrafza Narges;

  • 作者单位

    Isfahan Univ Technol Dept Chem Esfahan 8415683111 Iran;

    Isfahan Univ Technol Dept Chem Esfahan 8415683111 Iran;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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