Quantitative sampling using an Aerodyne aerosol mass spectrometer: 2. Measurements of fine particulate chemical composition in two UK cities (vol 108, art no 4091, 2003). Allan, J., D., Jimenez, J., L., Williams, P., I., Alfarra, M., R., Bower, K., N., Jayne, J., T., Coe, H., Worsnop, D., R., Gallagher, M., W., McDonald, A., G., Nemitz, E., & Canagaratna, M., R. Journal of Geophysical Research-Atmospheres, 108(D9):-, 2003.
Paper
Website abstract bibtex The aerosol mass spectrometer (AMS), manufactured by Aerodyne Research, Inc., has been shown to be capable of delivering quantitative information on the chemical composition and size of volatile and semivolatile fine airborne particulate matter with high time resolution. Analytical and software tools for interpreting the data from this instrument and generating meaningful, quantitative results have been developed and are presented here with a brief description of the instrument. These include the conversion of detected ion rates from the quadrupole mass spectrometer during the mass spectrum (MS) mode of operation to atmospheric mass concentrations of chemical species (in μg m-3) by applying calibration data. It is also necessary to correct for variations in the electron multiplier performance, and a method involving the measurement of the instrument's response to gas phase signals is also presented. The techniques for applying particle velocity calibration data and transforming signals from time of flight (TOF) mode to chemical mass distributions in terms of aerodynamic diameter (dM/dlog(Da) distributions) are also presented. It is also possible to quantify the uncertainties in both MS and TOF data by evaluating the ion counting statistics and variability of the background signal, respectively. This paper is accompanied by part 2 of this series, in which these methods are used to process and analyze AMS results on ambient aerosol from two U.K. cities at different times of the year.
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<m:bold>From Duplicate 1 ( </m:bold>
<m:bold>
<m:italic>Quantitative sampling using an Aerodyne aerosol mass spectrometer: 2. Measurements of fine particulate chemical composition in two UK cities (vol 108, art no 4091, 2003)</m:italic>
</m:bold>
<m:bold> - Allan, J D; Jimenez, J L; Williams, P I; Alfarra, M R; Bower, K N; Jayne, J T; Coe, H; Worsnop, D R; Gallagher, M W; McDonald, A G; Nemitz, E; Canagaratna, M R )<m:linebreak></m:linebreak>
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<m:linebreak></m:linebreak>
<m:bold>From Duplicate 1 ( </m:bold>
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<m:italic>Quantitative sampling using an Aerodyne aerosol mass spectrometer: 2. Measurements of fine particulate chemical composition in two UK cities (vol 108, art no 4091, 2003)</m:italic>
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<m:bold> - Allan, J D; Alfarra, M R; Bower, K N; Williams, P I; Gallagher, M W; Jimenez, J L; McDonald, A G; Nemitz, E; Canagaratna, M R; Jayne, J T; Coe, H; Worsnop, D R )<m:linebreak></m:linebreak>
</m:bold>
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<m:linebreak></m:linebreak>
<m:bold>From Duplicate 2 ( </m:bold>
<m:bold></m:bold>
<m:bold>
<m:italic>Quantitative sampling using an Aerodyne aerosol mass spectrometer: 1. Techniques of data interpretation and error analysis (vol 108, art no 4090, 2003)</m:italic>
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<m:bold></m:bold>
<m:bold> - Allan, J D; Jimenez, J L; Williams, P I; Alfarra, M R; Bower, K N; Jayne, J T; Coe, H; Worsnop, D R )<m:linebreak></m:linebreak>
</m:bold>
<m:linebreak></m:linebreak>Correction<m:linebreak></m:linebreak>
<m:linebreak></m:linebreak>
<m:linebreak></m:linebreak>
<m:linebreak></m:linebreak>
<m:bold>From Duplicate 2 ( </m:bold>
<m:bold>
<m:italic>Quantitative sampling using an Aerodyne aerosol mass spectrometer: 1. Techniques of data interpretation and error analysis (vol 108, art no 4090, 2003)</m:italic>
</m:bold>
<m:bold> - Allan, J D; Jimenez, J L; Williams, P I; Alfarra, M R; Bower, K N; Jayne, J T; Coe, H; Worsnop, D R )<m:linebreak></m:linebreak>
</m:bold>
<m:linebreak></m:linebreak>Correction<m:linebreak></m:linebreak>
<m:linebreak></m:linebreak>
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abstract = {The aerosol mass spectrometer (AMS), manufactured by Aerodyne Research, Inc., has been shown to be capable of delivering quantitative information on the chemical composition and size of volatile and semivolatile fine airborne particulate matter with high time resolution. Analytical and software tools for interpreting the data from this instrument and generating meaningful, quantitative results have been developed and are presented here with a brief description of the instrument. These include the conversion of detected ion rates from the quadrupole mass spectrometer during the mass spectrum (MS) mode of operation to atmospheric mass concentrations of chemical species (in μg m-3) by applying calibration data. It is also necessary to correct for variations in the electron multiplier performance, and a method involving the measurement of the instrument's response to gas phase signals is also presented. The techniques for applying particle velocity calibration data and transforming signals from time of flight (TOF) mode to chemical mass distributions in terms of aerodynamic diameter (dM/dlog(Da) distributions) are also presented. It is also possible to quantify the uncertainties in both MS and TOF data by evaluating the ion counting statistics and variability of the background signal, respectively. This paper is accompanied by part 2 of this series, in which these methods are used to process and analyze AMS results on ambient aerosol from two U.K. cities at different times of the year.},
bibtype = {article},
author = {Allan, James D. and Jimenez, J L and Williams, P I and Alfarra, M R and Bower, K N and Jayne, J T and Coe, H and Worsnop, D R and Gallagher, M W and McDonald, A G and Nemitz, E and Canagaratna, M R},
journal = {Journal of Geophysical Research-Atmospheres},
number = {D9}
}
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