Air Quality Research Center

•   Two simulated sunlight illumination systems with sample chambers for liquid, ice, or filters
•   Monochromatic illumination system with chambers for ice or liquid samples
•   Two isocratic Shimadzu HPLC systems with UV-Vis detectors
•   One isocratic Shimadzu HPLC system with fluorescence detector
•   One gradient Shimadzu HPLC system with photodiode array detector
•   Shimadzu UV2501-PC UV/Vis spectrophotometer
•   World Precision Instruments liquid-waveguide capillary cell spectrophotometer (LWCC)
•   Millipore Milli-Q Advantage A10 water purification system
•   Custom-built cold cell that fits into a micro-computed tomography (micro-CT) instrument in the UCD Center for Molecular and Genomic Imaging (CMGI)
•   Snow-making machine in a walk-in freezer

•   Airborne Turbulence Probe:  Aircraft Integrated Meteorological Measurement System (Aventech, AIMMS-30)
•   GRAW portable radiosonde system
•   Fast Ethane Spectrometer (Aerodyne, CW-Tunable Infrared Laser Direct Absorption Spectrometer (TILDAS) System)
•   CO instrument (AeroLaser, fast-response VUV resonance fluorescence instrument)
•   NOx Analzyer (Thermo Model 42i, Trace Level Chemiluminescence) with photolytic cell (Air Qualiity Design)
•   O3 Analyzer (2B Tech 205 dual-beam UV spectrometer)

•   Atmospheric Photochemical Chamber (10 m3 Teflon chamber, temperature controlled 28 m3 enclosure)
•   CF3O- Chemical Ionization Mass Spectrometer (CIMS) with Triple Quadrupole analyzer
•   Ionicon Time of Flight mass spectrometer (TOF 4000)
•   Nanospray and nano-DESI ion source for high-resolution mass spectrometry
•   TSI Scanning Mobility Particle Sizer (SMPS)
•   Thermo NOx analyzer (42i)
•   Thermo Ozone analyzer (49i)
•   Agilent GC flame ionization detector (GC-FID) with gas sampling
•   Polydisperse aerosol generator
•   Ozone generator
•   Shimadzu FT-IR with heated 10m pathlength cell and MCT detector (IRTracer-100)
•   Shimadzu UV-Vis dual beam spectrometer (UV-1800)
•   Smoldering combustion chamber
•   Agilent Liquid chromatography - UV detector
•   Semi-prep LC
•   Chemical synthesis equipment

•   Two-wavelength cavity ringdown photoacoustic spectrometer (CRD-PAS)
•   Single Particle Soot Photometer (SP2)
•   Cloud Condensation Nuclei (CCN) Counter
•   CCN Counter with in situ droplet sizing
•   Aerosol chemical speciation monitor (ACSM; joint with Qi Zhang)
•   3-wavelength photoacoustic aerosol spectrometer (PASS-3)
•   Scanning mobility particle sizer (SMPS)
•   Scanning electrical mobility sizer (SEMS)
•   Aerosol particle sizer (APS)
•   Oxidation flowtube
•   Ozone monitor
•   NOx monitor
•   SO2 monitor
•   Miniature marine aerosol reference tank (miniMART)

•   Aerodyne Soot-Particle High-Resolution Time-of-Flight Aerosol Mass Spectrometer (SP-AMS)
•   Aerodyne Aerosol Chemical Speciation Monitor (ACSM, jointly with Chris Cappa)
•   Scanning Mobility Particle Sizer (SMPS)
•   Metrohm Particle Into Liquid Sampler (PILS)
•   Metrohm Ion Chromatograph systems with conductivity and UV-vis detectors (2)
•   Digital controlled thermodenuder (TD) system (room temperature – 300 oC)
•   TSI 3772 Condensation Particle Counter (CPC)
•   Aerosol generation system (Collison atomizer, pumps, and diffusion dryers)
•   Droplet-on-demand droplet generator
•   Electrospray aerosol generator
•   Shimazu total carbon and total nitrogen (TC/TN) analyzer

Rotating Drum Impactor (RDI) samplers collect size-segregated samples with variable time resolution. Multiple non-destructive analyses of RDI samples are available, including synchrotron-induced X-Ray Fluorescence (SXRF) that provides quantitative elemental data of elements.

Primary contacts: Yongjing Zhao and Nicholas Spada.