The online instrument platform includes the following key components:
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Monitor for AeRosols and GAses (MARGA)
for measuring the inorganic aerosol components, including Cl-, NO3-, SO42-, NH4+, Na+, K+, Ca2+, and Mg2+
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Semi-continuous OC/EC analyzer
for measuring organic carbon (OC) and elemental carbon (EC)
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Online X-Ray Florescence spectrometer
for measuring elements such as Al, Fe, Ni, V, Pb, Zn, etc.
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In-situ Thermal desorption Aerosol Gas Chromatography-Mass Spectrometry analyzer (TAG-GCMS)
for
measuring organic molecular source markers. The availability of organic
marker data significantly enhances our capability to differentiate
similar primary organic aerosol sources and to resolve secondary
organic aerosol by different major precursors
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