AI Article Synopsis
- Electrochemical detectors should ideally respond to specific airborne chemicals in a way that corresponds directly to their concentration, without interference from other substances.
- Although manufacturers list known cross-sensitivities, users have reported unexpected interferences, highlighting potential gaps in product information.
- Testing revealed that different models of detectors had varying responses to certain chemicals, indicating that undocumented cross-sensitivities exist among the different devices.
Article Abstract
Ideally, the response of electrochemical detectors is proportional to the concentration of targeted airborne chemicals and is not be affected by concomitantly present substances. Manufacturers provide a limited list of cross-sensitivities but end-users have anecdotally reported unexpected interferences by other substances. Electrochemical detectors designed to measure airborne levels of CO, H(2)S, NO, NO(2), or SO(2), were challenged with potentially interfering substances in the absence of target analytes. Cross-sensitivities undocumented by the manufacturers were observed and were found to vary between different models of instruments for the same challenge chemical.
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| http://dx.doi.org/10.1039/b510084d | DOI Listing |
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