Introduction: Experimental Methods in Chemical Sensor and Sensor Array Evaluation and Development

Abstract

Sensors are devices, sensor arrays are collections of sensors, and it is through experimentation and computation that we obtain the knowledge we need to make useful analytical measurements. Gas and liquid chemical sensor arrays provide a new multidimensional analytical technique not unlike Gas Chromatography, Liquid chromatography, or GC/MS [gas chromatography mass spectrometry]. Exciting possibilities for advanced analytical measurements are emerging with the development and use of chemical sensor arrays. The multidisciplinary nature of sensor development and the diversity of the types of sensors, analytes, and applications provide a rich venue for research and development as well as the complex issues that lead to lively debates. Progress in developing arrays for analytical purposes is coming from applying new knowledge about biosystems that use sensor arrays, advanced predictive chemical computational capabilities, and significant increases in experimental materials and methods. The protocols for the experimental understanding of sensor arrays provides the foundation for present strategies and future models that will enable realization of the contributions of sensor arrays to analytical measurement science and technology.