Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer
Abstract Nanoparticles are a topic of interest because of their effects on human health and the climate, but the current options for evaluating their chemical composition—one of the key properties that determine the mechanisms of these effects—remain very limited and often require long collection ti...
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| Format: | Article |
| Language: | English |
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Springer
2021-02-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.200638 |
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| author | Sampsa Martikainen Sanna Saarikoski Paxton Juuti Hilkka Timonen Jorma Keskinen Panu Karjalainen |
| author_facet | Sampsa Martikainen Sanna Saarikoski Paxton Juuti Hilkka Timonen Jorma Keskinen Panu Karjalainen |
| author_sort | Sampsa Martikainen |
| collection | DOAJ |
| description | Abstract Nanoparticles are a topic of interest because of their effects on human health and the climate, but the current options for evaluating their chemical composition—one of the key properties that determine the mechanisms of these effects—remain very limited and often require long collection times. For example, the Soot Particle Aerosol Mass Spectrometer (SP-AMS) is an instrument that measures the chemical properties of particles in real time, but sampling loss fixes its lower particle size limit at 50 nm, thus excluding nanoparticles. Hence, we developed the Soot Particle Agglomeration Inlet (SPAI), an addition to the SP-AMS that enables it to detect and analyze nanoparticles by attaching them to the surfaces of artificially generated soot particles. We characterized and optimized the soot generation and the soot–nanoparticle agglomeration via laboratory testing and then assessed the SPAI’s performance using silver nanoparticles as the test aerosol. The SPAI increased the SP-AMS’s capability to detect the silver nanoparticles by 35 times, demonstrating its potential in resolving issues related to analyzing the chemical composition of nanoparticles, either as an enhancement of the SP-AMS or as an addition to other sample pretreatment systems. |
| format | Article |
| id | doaj-art-4833790be4d64293a8bdc2002d164810 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-02-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-4833790be4d64293a8bdc2002d1648102025-02-09T12:19:38ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-02-012161810.4209/aaqr.200638Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass SpectrometerSampsa Martikainen0Sanna Saarikoski1Paxton Juuti2Hilkka Timonen3Jorma Keskinen4Panu Karjalainen5Aerosol Physics Laboratory, Tampere UniversityAtmospheric Composition Research, Finnish Meteorological InstituteAerosol Physics Laboratory, Tampere UniversityAtmospheric Composition Research, Finnish Meteorological InstituteAerosol Physics Laboratory, Tampere UniversityAerosol Physics Laboratory, Tampere UniversityAbstract Nanoparticles are a topic of interest because of their effects on human health and the climate, but the current options for evaluating their chemical composition—one of the key properties that determine the mechanisms of these effects—remain very limited and often require long collection times. For example, the Soot Particle Aerosol Mass Spectrometer (SP-AMS) is an instrument that measures the chemical properties of particles in real time, but sampling loss fixes its lower particle size limit at 50 nm, thus excluding nanoparticles. Hence, we developed the Soot Particle Agglomeration Inlet (SPAI), an addition to the SP-AMS that enables it to detect and analyze nanoparticles by attaching them to the surfaces of artificially generated soot particles. We characterized and optimized the soot generation and the soot–nanoparticle agglomeration via laboratory testing and then assessed the SPAI’s performance using silver nanoparticles as the test aerosol. The SPAI increased the SP-AMS’s capability to detect the silver nanoparticles by 35 times, demonstrating its potential in resolving issues related to analyzing the chemical composition of nanoparticles, either as an enhancement of the SP-AMS or as an addition to other sample pretreatment systems.https://doi.org/10.4209/aaqr.200638Aerosol characterizationNanoparticleChemical composition |
| spellingShingle | Sampsa Martikainen Sanna Saarikoski Paxton Juuti Hilkka Timonen Jorma Keskinen Panu Karjalainen Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer Aerosol and Air Quality Research Aerosol characterization Nanoparticle Chemical composition |
| title | Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer |
| title_full | Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer |
| title_fullStr | Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer |
| title_full_unstemmed | Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer |
| title_short | Soot Particle Agglomeration Inlet (SPAI) for Enabling Online Chemical Composition Measurement of Nanoparticles with the Aerosol Mass Spectrometer |
| title_sort | soot particle agglomeration inlet spai for enabling online chemical composition measurement of nanoparticles with the aerosol mass spectrometer |
| topic | Aerosol characterization Nanoparticle Chemical composition |
| url | https://doi.org/10.4209/aaqr.200638 |
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