长春工业大学 化学与生命科学学院,吉林 长春 130012
王志兵,博士,副教授,研究方向:食品分析,E-mail:wangzhibing@ccut.edu.cn
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朱清,龙冰华,陈星航等.疏水性低共熔溶剂液液微萃取/高效液相色谱法测定豆奶中三嗪类和苯脲类除草剂[J].分析测试学报,2021,40(10):1467-1473.
ZHU Qing,LONG Bing-hua,CHEN Xing-hang,et al.Determination of Triazine and Phenylurea Herbicides in Soy Milk by High Performance Liquid Chromatography with Hydrophobic Deep Eutectic Solvent Based Liquid-Liquid Microextraction[J].Journal of Instrumental Analysis,2021,40(10):1467-1473.
朱清,龙冰华,陈星航等.疏水性低共熔溶剂液液微萃取/高效液相色谱法测定豆奶中三嗪类和苯脲类除草剂[J].分析测试学报,2021,40(10):1467-1473. DOI: 10.19969/j.fxcsxb.21031201.
ZHU Qing,LONG Bing-hua,CHEN Xing-hang,et al.Determination of Triazine and Phenylurea Herbicides in Soy Milk by High Performance Liquid Chromatography with Hydrophobic Deep Eutectic Solvent Based Liquid-Liquid Microextraction[J].Journal of Instrumental Analysis,2021,40(10):1467-1473. DOI: 10.19969/j.fxcsxb.21031201.
该文建立了一种简单、高效的新型疏水性低共熔溶剂液液微萃取法,用于提取和富集市售包装豆奶中的三嗪类(阿特拉津、去草净)和苯脲类(灭草隆、绿麦隆)除草剂,并结合高效液相色谱对目标分析物进行分离和测定。以六氟异丙醇为氢键供体,四丁基氯化铵为氢键受体,按照不同摩尔比制备了一系列疏水性低共熔溶剂,并对影响萃取效果的实验条件进行了优化,包括低共熔溶剂的种类及用量、氯化钠用量、涡旋时间、pH值和温度。结果表明,在最佳实验条件下,4种目标物在1.00~500.00 μg/L范围内具有良好的线性关系(,r ,≥ 0.998 4),检出限和定量下限分别为0.56~0.95 μg/L和1.87~3.16 μg/L,日内和日间相对标准偏差(RSD)分别为0.28%~2.0%和2.1%~7.5%,加标回收率为86.4%~117%。该方法具有操作简单快速、萃取时间短、试剂用量少和实验成本低等优点,可用于市售包装豆奶中三嗪类和苯脲类除草剂的分析检测。
A novel high performance liquid chromatography(HPLC) with hydrophobic deep eutectic solvent(DES) based liquid-liquid microextraction was developed for the separation and determination of triazine(atrazine,terbutryn) and phenylurea(monuron,chlortoluron) herbicides in market packaged soymilk.In this work,a series of new DESs with different molar ratios were synthesized with tetrabutylammonium chloride as hydrogen bond acceptor and hexafluoropropanol as hydrogen bond donor.In addition,the experimental conditions that affect the extraction effect were investigated in detail,including type and amount of DESs,amount of NaCl,vortex time, pH value and temperature.Experimental results showed that,there were good linear relationships for the target analytes in the range of 1.00-500.00 μg/L,with correlation coefficients(,r,) not less than 0.998 4.The limits of detection(LOD,,S/N, = 3) and quantitation(LOQ,,S/N, = 10) were in the range of 0.56-0.95 µg/L and 1.87-3.16 µg/L,respectively.The relative standard deviations for intra-day and inter-day precision were in the range of 0.28%-2.0% and 2.1%-7.5%,respectively.Recoveries for the target analytes in four spiked samples ranged from 86.4% to 117%,with relative standard deviations of 0.13%-5.7%.With the advantages of simplicity,rapidness,short extraction time,low consumption and low experimental cost,this method could be used for the analysis and detection of triazine and phenylurea herbicides in market packaged soy milk.
液液微萃取疏水性低共熔溶剂三嗪类除草剂苯脲类除草剂豆奶高效液相色谱
liquid-liquid microextractiondeep eutectic solventstriazine herbicidesphenylurea herbicidessoy milkhigh performance liquid chromatography
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