Characterization of an Aerosol Microconcentrator for Analysis Using Microscale Optical Spectroscopies.

ABSTRACT: Efficient microconcentration of aerosols to a substrate is essential for effectively coupling the collected particles to microscale optical spectroscopies such as laser-induced or spark microplasma, or micro-Raman or infrared spectroscopies. In this study, we present detailed characterization of a corona-based aerosol microconcentration technique developed previously (Diwakar and Kulkarni, 2012). The method involves two coaxial electrodes separated by a few millimeters, one held at a high electrical potential and the other grounded. The particles are collected on the collection (i.e., ground) electrode from a coaxial aerosol flow in a one-step charge-and-collect scheme using corona discharge and electrical precipitation between the two electrodes. Performance of the corona microconcentrati

SUBMITTER: Zheng L 

PROVIDER: S-EPMC5472229 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature