Integrated Micro-Photoionization Detector With An Ultrathin Ultraviolet Transmission Window

A detection system for one or more VOC analytes comprising:

• (i) a gas chromatography (GC) unit that comprises at least one gas chromatography column;
• and
• (ii) an integrated microfluidic photoionization detector (PID) disposed downstream of the gas chromatography (GC) unit that comprises:
• a microfluidic ionization chamber having an inlet that receives a fluid sample and an outlet through which the fluid sample exits the microfluidic ionization chamber;
• a first electrode and a distinct second electrode in electrical communication with the microfluidic ionization chamber;
• a microfluidic ultraviolet radiation chamber that is configured to generate ultraviolet photons;
• and
• a transmissive ultrathin window disposed between the microfluidic ionization chamber and the microfluidic ultraviolet radiation chamber that permits the ultraviolet photons to pass from the microfluidic ultraviolet radiation chamber into the microfluidic ionization chamber, wherein the microfluidic photoionization detector (PID) analyzes a sample processed in the gas chromatography (GC) unit.