A Practical Guide on Coupling a Scanning Mobility Sizer and Inductively Coupled Plasma Mass Spectrometer (SMPS-ICPMS)
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Date
2017-07-11
Publication Type
Journal Article
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Abstract
A large variety of analytical methods are available to characterize particles in aerosols and suspensions. The choice of the appropriate technique
depends on the properties to be determined. In many fields information about particle size and chemical composition are of great importance.
While in aerosol techniques particle size distributions of gas-borne particles are determined online, their elemental composition is commonly
analyzed offline after an appropriate sampling and preparation procedure. To obtain both types of information online and simultaneously, a
hyphenated setup was recently developed, including a Scanning Mobility Particle Sizer (SMPS) and an Inductively Coupled Plasma Mass
Spectrometer (ICPMS). This allows first to classify the particles with respect to their mobility diameter, and then to determine their number
concentration and elemental composition in parallel. A Rotating Disk Diluter (RDD) is used as the introduction system, giving more flexibility
regarding the use of different aerosol sources. In this work, a practical guide is provided describing the different steps for establishing this
instrumentation, and how to use this analysis tool. The versatility of this hyphenated technique is demonstrated in example measurements on
three different aerosols generated out of a) a salt solution, b) a suspension, and c) emitted by a thermal process.
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Journal / series
Volume
125
Pages / Article No.
Publisher
JoVE
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Subject
Chemistry; Issue 125; Aerosol; suspension; rotating disk diluter; SMPS; ICPMS; elemental analysis; size distribution; nanoparticles