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    • 多壁碳纳米管净化-超高效液相色谱串联质谱法测定香蕉中8种新烟碱类杀虫剂

    乐渊,邓正敏,刘春华,吴南村

    Jiangsu Agricultural Sciences（2020）

    Cited 3|Views18
    Abstract
    建立基于多壁碳纳米管净化、超高效液相色谱串联质谱技术同时测定香蕉中呋虫胺等8种新烟碱类杀虫剂残留量的分析方法.香蕉样品中用含1％乙酸的乙腈提取后,经多壁碳纳米管净化后,用超高效液相色谱-串联质谱法测定.呋虫胺等8 种新烟碱类杀虫剂的质量浓度在0.005～0.200 mg/L范围内线性良好,最低检出限在0.03～0.44 μg/kg之间,相关系数均大于0.99,平均加标回收率在75.2％～114.9％之间,相对标准差在0.3％～9.5％之间.与N-丙基乙二胺和石墨化碳黑吸附剂相比,多壁碳纳米管具有净化效果好和效率高等优点.方法学考察及实际样品的测定证明该方法简便、快速、准确,可用于香蕉中呋虫胺等8种新烟碱类杀虫剂残留量的检测.
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    • Pretraining has recently greatly promoted the development of natural language processing (NLP)
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    【要点】：论文提出了一种基于多壁碳纳米管净化和超高效液相色谱串联质谱技术的新方法，用于同时测定香蕉中8种新烟碱类杀虫剂残留量，实现了高效、准确的检测。
    

    【方法】：采用含1%乙酸的乙腈对香蕉样品进行提取，并通过多壁碳纳米管进行净化，然后使用超高效液相色谱-串联质谱法进行测定。
    

    【实验】：实验在0.005～0.200 mg/L范围内得到良好的线性关系，最低检出限在0.03～0.44 μg/kg之间，相关系数均大于0.99，平均加标回收率在75.2％～114.9％之间，相对标准差在0.3％～9.5％之间。使用的数据集为实际香蕉样品。结果表明，该方法简便、快速、准确，且多壁碳纳米管相较于其他吸附剂具有更好的净化效果和效率。