CHEMICAL SENSING DEVICE

摘要

A chemical sensing system includes a substrate material, a detector capable of indicating a presence of a target compound, gas, or vapor, and a heater for rapidly releasing compounds, gases and vapors from the substrate material. The substrate material acts to concentrate the compounds, gases, and vapors from a sample area for improved detection by the detector.

主权项

1. A preconcentrator comprising a cartridge and a substrate coated with an organic compound, wherein the organic compound comprises copolymers having polar functional groups and hydrophobic functional groups, and wherein the substrate is enclosed within the cartridge.