| Instrument: | CIMS |
| Principal Investigators: | Paul O. Wennberg & Fred Eisele |
| Co-Investigators: | Suresh Dhaniyala , David Tanner , Richard Flagan & Karena McKinney |
| Organization: | Division of Geological and Planetary Sciences and Division of Engineering Sciences California Institute of Technology Pasadena, CA 91125 Atmospheric Chemistry Division National Center for Atmospheric Research Boulder, CO 90303 |
Measurement Description:The CIMS instrument will obtain its first measurements as part of the SOLVE campaign. The instrument is designed to measure nitric acid present in both the particulate and gas phases. The analytical technique involves chemical ionization of gas phase nitric acid at ambient pressure followed by sampling with a quadrapole mass spectrometer. Expected sensitivity is about 100 pptv. The inlet is designed to separate the aerosol by impaction into a gas stream provided by boil-off from a liquid nitrogen dewar. This gas is heated to provide sufficient energy to volatilize the condensed phase.
References: None Yet.