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1	Design, Construction, and Characterization of a Mini-CO2/VOC Sensor and Gas Chromatograph for Field Research Basdeo, Rishi 01 January 2021 (has links) Volatile Organic Compounds (VOCs) are commonly used as indicators of an organism's health, among other factors. Traditionally, gas chromatographs (GC) are used to classify these but are prohibitively expensive and impractical for field use. This thesis outlines the motivations, design, construction, and characterization of a portable GC. This proof-of-concept uses off-the-shelf components to show that the production of a device is feasible. It was able to successfully generate carrier gas from the surrounding air via filtration by activated carbon fiber filters. It was also able to reliably produce distinguishable peaks for acetone and hexane at retention times that were reasonable for a prototype system. With some modifications, this system has the strong potential for long-term implementation in the field. Gas Chromatograph Portable VOC Volatile Organic Compound Volatile Organic Compounds VOCs Portable Gas Chromatograph GC Portable GC Micro GC VOC Sensor SGP30 VOC Detector Active Listener Active Listening Gas Chromatography Portable Gas Chromatography Field Research Field Instrumentation Portable Instrument Analytical Chemistry Instrumentation Field Sampling Low-Cost Instrument Open-Sourced Technology Sensor Analytical Chemistry Mechanical Engineering