| 利用太赫兹时域光谱检测农产品中2种酰胺类农药残留 |
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| 引用本文： | 王孝伟,王强,王花丽.利用太赫兹时域光谱检测农产品中2种酰胺类农药残留[J].安徽农业科学,2010,38(32):18184-18186. |
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| 作者姓名： | 王孝伟 王强 王花丽 |
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| 作者单位： | 中国计量学院质量与安全工程学院,浙江杭州,310018 |
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| 基金项目： | 国家质检公益性科研专项资助(200910181); 国家自然科学基金项目(60902095) |
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| 摘 要： | 目的]探讨THz技术在农药识别和残留量检测中的应用。方法]利用太赫兹时域光谱（THz-TDS）技术对2种除草剂丁草胺和异丙甲草胺在室温氮气环境下的THz远红外光谱特性进行测定,并利用菲涅尔公式的数据处理模型求取了其在0.2~2.2 THz波段内的折射率和吸收系数。结果]2种农药在0.2~2.2 THz波段内分别存在不同的特征吸收峰。尽管2种农药分子结构相似,但其吸收谱和折射率却存在很大差异。结论]THz-TDS技术在农药微量残留检测方面是可行的,特别是在识别结构较为相似的物质上有较大优势。
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| 关 键 词： | 太赫兹波 农药残留 太赫兹时域光谱 丁草胺 异丙甲草胺 |
Determination of 2 Amides Pesticide Residues in Agricultural Products by Terahertz Time-domain Spectroscopy |
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| WANG Xiao-wei et al.Determination of 2 Amides Pesticide Residues in Agricultural Products by Terahertz Time-domain Spectroscopy[J].Journal of Anhui Agricultural Sciences,2010,38(32):18184-18186. |
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| Authors: | WANG Xiao-wei |
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| Institution: | WANG Xiao-wei et al (College of Quality & Safety Engineering,China Jiliang University,Hangzhou,Zhejiang 310018) |
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| Abstract: | Objective] The aim was to explore the application of terahertz(THz) technique in pesticide recognition and residue determination.Method] THz far-infrared spectral characteristics of 2 herbicides(butachlor and metolachlor) were measured by THz time-domain spectroscopy(THz-TDS) under conditions of room temperature and nitrogen,meanwhile their refractive index and absorption coefficient between 0.2 and 2.2 THz were calculated by using models based on Fresenl equations.Result] The 2 pesticides both had a ser... |
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| Keywords: | Terahertz wave Pesticide residue THz-TDS Butachlor Metolachlor |
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