摘要
研究了甲醇、乙醇等低碳醇类化合物在微波传输过程中对传输散射参数(又称S参数)的影响,利 用微波透射法测定了S参数,根据其变化探讨了微波介电谱应用于低碳醇化合物分析的可能性,建立了一 种基于散射参数的微波介电化学分析法。实验数据表明,微波的S参数与甲醇、乙醇等低碳醇化合物的浓度 在一定范围内呈现良好的线性关系。
A novel technique for detecting low-carbon alcohols in water at microwave frequency is presented. The technique is based on the measurement of microwave scattering parameters of aqueous solutions containing alcohols. The method employs transmission-line technique at frequency field. The scattering parameters were obtained by measuring the microwave transmission power. The changes in scattering parameters were measured when a sample vessel filled with aqueous solution containing low-carbon alcohols was inserted in the microwave transmission line. It is shown, from the experimemal data, that there are good linear relationships between the scattering parameters and the concentrations of alcohols within a certain range.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2005年第12期2092-2096,共5页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金(29975025)资助项目
关键词
微波
S参数
低碳醇
化学分析
Microwave
Scattering parameter
Alcohols
Chemical analysis
