The particle number concentrations were measured using an optical counter with four size intervals between 0.3 and 5.0 μm.
Finally, 3·3 μm for MPD and 12·4 fl for MPV measured by the optical counter were identified by ROC analysis as the best cut-off values for differentiating ITP from inherited macrothrombocytopenias.
PM2.5 and PM10 concentrations were measured with an optical counter (1.108; Grimm, Douglasville, GA, USA), with a sensitivity of 1 particle count/L, a mass resolution of 0.1 μg/L, and a reproducibility of 2%.
Rapid particle growth by the condensation of water vapour resulting from expansion in the inlet of particle sizing instruments such as optical particle counters and impactors was modelled.
In addition to the two main monitoring sites, five additional locations were equipped with optical particle counters to allow for the investigation of the spatial and temporal distribution of PM2.5 in the urban environment.
Aerosol size distributions measured using a differential mobility analyzer and two optical particle counters were combined with filter-based composition measurements to derive a physicochemical description of the aerosol sampled.
Low-cost, compact optical particle counters (OPCs), which provide accurate PM measurements independent of the particle complex index of refraction (CRI), can be useful in personal exposure monitoring and distributed sensor network studies applications.
The size distribution of the produced monodisperse aerosols was determined by an optical particle counter.
The particle number concentrations were monitored using an optical particle counter with eight-channels ranging from 0.1 0.2 to>2.0 μm diameter.
