Photothermal Deflection Spectroscopy of Collected Aerosols

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Rotating and Stationary ImpactionDeposit pattern for nonrotatingimpaction plate250200Pixel Intensity1501005000 100 200 300 400 500 600Cross Section [um]Distribution for individualimpactor spot“Uniform deposit” patternfor rotating impactor plate
Size and Number Calibration <strong>Aerosols</strong> are collected at different MOUDI stages for different times t(MOUDI flow rate = 5 L/min) Plates are inspected with an optical microscope The average size and number surface density are measured The differential plate mass are measured with a microbalance Mass is used to calculate particle density and to scalephotothermal signals to mass loading20 seconds120 seconds100 μm100 μm
Page 3 and 4: Chemical Analysis Perspective ofPho
Page 5 and 6: Apparatuses to DetectPhotothermal H
Page 7 and 8: Photothermal Detection: ComparisonC
Page 9 and 10: Further Considerations for Chemical
Page 11 and 12: Photothermal Detection of Condensed
Page 13 and 14: PM - Updated RulesUS EPA Fine Parti
Page 15 and 16: Laboratory-Based Condensed PhaseAer
Page 17 and 18: Aerosol / Particle Generation Nebul
Page 19: Aerosols Generation and SamplingAto
Page 23 and 24: IR Laser-Excited Photothermal Defle
Page 25 and 26: Aerosols Number Concentration100908
Page 27 and 28: So why are the detection limits so
Page 29 and 30: MOUDI Calibration CurveStage 6 (0.5
Page 31 and 32: Finite Element Analysis Modeling Fi
Page 33 and 34: Particle “Crowding” Effect Does
Page 35 and 36: Results for Substrate Thermal Condu
Page 37 and 38: Inference from Heat Transport and S
Page 39 and 40: Future Aerosol Work We need to us a
Page 41: Acknowledgements Several persons wo

Photothermal Deflection Spectroscopy of Collected Aerosols

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