| Autor: |
Edward T. Zellers, Joseph A. Potkay, Changhua Zhan, Junqi Wang |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS). |
| DOI: |
10.1109/transducers.2017.7994137 |
| Popis: |
A passive, membrane-mediated, microfabricated vapor extractor (μVE) chip for collecting volatile organic compounds (VOC) from water and biofluids is presented. Its performance when interfaced to a micro-scale gas chromatograph (μGC) prototype is demonstrated. A mixture of 4 VOCs spiked into synthetic urine at ppm concentrations was extracted by the 2.8×2.3 cm μνE chip from a 700-μL sample in 3.5 min, and then preconcentrated, injected, separated and detected by μGC in ∼80 sec with detection limits as low as 660 ppb. Response patterns provided by the μGC sensor-array detector facilitated VOC identification. The hybrid μνE-μGC microsystem may eventually permit rapid field/clinical analyses of water contaminants and urinary biomarkers of exposure and disease. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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