Photothermal Deflection Spectroscopy of Collected Aerosols
Photothermal Deflection Spectroscopy of Collected Aerosols Photothermal Deflection Spectroscopy of Collected Aerosols
Chemical Analysis Perspective ofPhotothermal Spectrometry Spectroscopy measures light absorption in order toquantitatively identify substances of interest The photothermal effect heats a sample uponabsorption of electromagnetic radiation Refractive index change from the photothermaltemperature change produces an optical signals High irradiance sources produce large temperaturechanges, thus large signals Is an ultrasensitive technique used to measureoptical absorbance to 10 -7 AU in fluids
- Page 4 and 5: PrinciplesOptical energy absorbed a
- Page 6 and 7: Photothermal Detection:ApparatusesC
- Page 8 and 9: Considerations for Chemical Analysi
- Page 10 and 11: Aerosol Air PollutionAgriculture Wa
- Page 12 and 13: PM 2.5 - Effects PM 2.5 refers to
- Page 14 and 15: Logan, Utah USA Elevation 4535 feet
- Page 16 and 17: Aerosol Particle Generation and Sam
- Page 18 and 19: Aerosols Generation and SamplingMet
- Page 20 and 21: Rotating and Stationary ImpactionDe
- Page 22 and 23: Simple IR Laser-ExcitedPhotothermal
- Page 24 and 25: Summary of Aerosol Data Analysis No
- Page 26 and 27: Photothermal SignalPhotothermal Sig
- Page 28 and 29: Potential Interpretation Problems T
- Page 30 and 31: Aerosol Loading EffectsEvolution ae
- Page 32 and 33: Finite Element Analysis Calculation
- Page 34 and 35: Substrate Thermal Conductivity Effe
- Page 36 and 37: Substrate Heat Capacity Effect How
- Page 38 and 39: Summary and ConclusionsSummary and
- Page 40 and 41: Stephen Bialkowski’s s Laboratory
Chemical Analysis Perspective <strong>of</strong><strong>Photothermal</strong> Spectrometry <strong>Spectroscopy</strong> measures light absorption in order toquantitatively identify substances <strong>of</strong> interest The photothermal effect heats a sample uponabsorption <strong>of</strong> electromagnetic radiation Refractive index change from the photothermaltemperature change produces an optical signals High irradiance sources produce large temperaturechanges, thus large signals Is an ultrasensitive technique used to measureoptical absorbance to 10 -7 AU in fluids
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