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徐琳, 王乃岩. ATR/FTIR技术和红外透射法用于蔬菜中农药含量测定的比较研究[J]. 红外技术, 2008, 30(12): 702-705. DOI: 10.3969/j.issn.1001-8891.2008.12.005
引用本文: 徐琳, 王乃岩. ATR/FTIR技术和红外透射法用于蔬菜中农药含量测定的比较研究[J]. 红外技术, 2008, 30(12): 702-705. DOI: 10.3969/j.issn.1001-8891.2008.12.005
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XU Lin, WANG Nai-yan. Comparative Study on ATR/FTIR Technology and Infrared Transmission Method for the Determination of Pesticides in Vegetables[J]. Infrared Technology , 2008, 30(12): 702-705. DOI: 10.3969/j.issn.1001-8891.2008.12.005
Citation: XU Lin, WANG Nai-yan. Comparative Study on ATR/FTIR Technology and Infrared Transmission Method for the Determination of Pesticides in Vegetables[J]. Infrared Technology , 2008, 30(12): 702-705. DOI: 10.3969/j.issn.1001-8891.2008.12.005
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ATR/FTIR技术和红外透射法用于蔬菜中农药含量测定的比较研究

Comparative Study on ATR/FTIR Technology and Infrared Transmission Method for the Determination of Pesticides in Vegetables

    摘要
  • 摘要: 从理论和样品分析两方面比较了ATR/FTIR技术和红外透射法,并分别用这两种红外技术测定了蔬菜中氯氰菊酯含量.结果表明:氯氰菊酯在916cm-1处的吸收峰不受青菜叶谱图干扰,可选择此峰为定量分析波数.以峰面积定量,运用ATR/FTIR技术和红外透射法分别得到峰面积Y和样品浓度X的线性方程:y=1.423x-0.0021,相关系数R=0.9979;y=26.025x-2.2847,相关系数R=0.9971,其最低检出线分别为0.01 mg和0.15 mg.ATR/FTIR技术相对于传统红外透射法其测定灵敏度更高,且完全不需对样品进行预处理.

     

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