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A Practical Guide on Coupling a Scanning Mobility Sizer and Inductively Coupled Plasma Mass Spectrometer SMPS-ICPMS
Published on: July 11, 2017
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Performance Comparison of Field Portable Instruments to the Scanning Mobility Particle Sizer Using Monodispersed and
Evanly Vo1, Matthew Horvatin2, Ziqing Zhuang1
1National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, Pittsburgh, PA, USA.
Annals of Work Exposures and Health
|May 23, 2018
Summary
Portable aerosol instruments were evaluated against a reference Scanning Mobility Particle Sizer (SMPS). The NanoScan SMPS and NanoScan-OPS showed the best performance for measuring particle concentrations and sizes in various aerosol tests.
Area of Science:
- Environmental monitoring
- Aerosol science and engineering
- Occupational health and safety
Background:
- Accurate measurement of airborne particles is crucial for assessing workplace exposure.
- Field-portable aerosol instruments offer potential for real-time monitoring in diverse environments.
- Evaluating the performance of portable instruments against reference methods is essential for reliable data.
Purpose of the Study:
- To compare the performance of three field portable aerosol instrument sets against a reference Scanning Mobility Particle Sizer (SMPS).
- To assess the accuracy of particle concentration and size measurements for monodispersed and polydispersed aerosols.
- To provide data for selecting suitable portable instruments for respiratory protection assessment in nanotechnology workplaces.
Main Methods:
- Portable instruments (handheld CPC-3007, PAMS, NanoScan SMPS + OPS) were tested using monodispersed (30-300 nm) and polydispersed aerosols.
- Aerosols were generated at controlled concentrations ranging from ~8 × 10³ to 1 × 10⁵ particles cm⁻³.
- Performance was evaluated by comparing measurements against a reference Scanning Mobility Particle Sizer (SMPS).
Main Results:
- NanoScan SMPS measurements were within 13% of the reference SMPS for monodispersed aerosols.
- NanoScan-OPS showed favorable comparisons for polydispersed aerosols (concentration deviations ≤10%, size deviations ≤4%).
- PAMS and handheld CPC-3007 showed higher deviations, particularly for polydispersed particle concentrations (PAMS up to 36%).
Conclusions:
- The NanoScan SMPS and NanoScan-OPS demonstrated the best performance among the tested portable instruments.
- Results aid industrial hygienists and safety professionals in selecting appropriate portable aerosol measurement devices.
- This evaluation supports informed decisions for workplace exposure monitoring and respiratory protection assessments.
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