Articles | Volume 12, issue 4
https://doi.org/10.5194/amt-12-2387-2019
https://doi.org/10.5194/amt-12-2387-2019
Research article
 | 
16 Apr 2019
Research article |  | 16 Apr 2019

An instrument for the rapid quantification of PM-bound ROS: the Particle Into Nitroxide Quencher (PINQ)

Reece A. Brown, Svetlana Stevanovic, Steven Bottle, and Zoran D. Ristovski

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Short summary
The paper details the design and characterization of a novel instrument for the measurement of particle reactivity and potential bioactivity, the PINQ. It continuously collects particles, regardless of size or composition, directly into a very small amount of liquid with a collection efficiency of > 0.97 and a cut-off size of 20 nm. PINQ has the highest time resolution, of only 1 min, and is very sensitive to various reactive species from the air.