Chromatographic Signals and Modulation

这项研究得到了化学部分析和表面化学项目的支持，将把信息论技术应用于热调制气相色谱。以前主要由光谱学家使用的方法将被用来提高检测限和混合物的复杂性，这些都可以通过气相色谱来解决。对于简单的混合物，分析速度将会提高。在设计新的色谱分析模式时，将考虑进样器、检测器和调制器的噪声特性。本研究将傅里叶变换和相关信号处理应用于热调制气相色谱，一种分离和鉴定挥发性化学物质的技术。根据具体的方法和问题，应加强对工业过程的连续在线监测的检测或改进。

This research, supported by the Analytical and Surface Chemistry Program in the Chemistry Division, will apply information theoretic techniques to thermally modulated gas chromatography. Approaches previously employed mainly by spectrocscopists will be used to improve detection limits and mixture complexity addressable by gas chromatography. For simple mixtures, increased speed of analysis will result. Noise characteristics of injectors, detectors, and modulators will be considered in designing novel modes of chromatographic analysis. %%% This research will apply Fourier Transform and correlation signal processing to thermally modulated gas chromatography, a technique for separating and identifying volatile chemical species. Depending on the specific approach and problem, enhancements to detection or improvements in continuous on-line monitoring of industrial processes should result.