We have demonstrated a PM analysis method that adds information on the number concentration and size by using microfluidic-based ionic current sensing with a bridge circuit. The bridge circuit allows for suppression of the background current and the detection of small PM particles, even if a relatively large micropore is used. This is the first demonstration of the detection of PM particles via ionic current sensing; our method enables analyses of both the number concentration and size.
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| http://dx.doi.org/10.2116/analsci.18C018 | DOI Listing |
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