{"data":{"id":"10.6084/m9.figshare.1632852","type":"dois","attributes":{"doi":"10.6084/m9.figshare.1632852","prefix":"10.6084","suffix":"m9.figshare.1632852","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Y. Ozawa","affiliation":[],"nameIdentifiers":[]},{"name":"N. Takeda","affiliation":[],"nameIdentifiers":[]},{"name":"T. Miyakawa","affiliation":[],"nameIdentifiers":[]},{"name":"M. Takei","affiliation":[],"nameIdentifiers":[]},{"name":"N. Hirayama","affiliation":[],"nameIdentifiers":[]},{"name":"N. Takegawa","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Evaluation of a particle trap laser desorption mass spectrometer (PT-LDMS) for the quantification of sulfate aerosols"}],"publisher":"Taylor \u0026 Francis","container":{},"publicationYear":2016,"subjects":[{"subject":"Biochemistry"},{"subject":"Space Science"},{"subject":"29999 Physical Sciences not elsewhere classified","subjectScheme":"FOR"},{"subject":"FOS: Physical sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Physical sciences","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"Microbiology"},{"subject":"FOS: Biological sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Biological sciences","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"Genetics"},{"subject":"Biotechnology"},{"subject":"59999 Environmental Sciences not elsewhere classified","subjectScheme":"FOR"},{"subject":"FOS: Earth and related environmental sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Earth and related environmental sciences","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"39999 Chemical Sciences not elsewhere classified","subjectScheme":"FOR"},{"subject":"FOS: Chemical sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Chemical sciences","subjectScheme":"Fields of Science and Technology (FOS)"}],"contributors":[],"dates":[{"date":"2016-01-13","dateType":"Created"},{"date":"2016-02-09","dateType":"Updated"},{"date":"2016","dateType":"Issued"}],"language":null,"types":{"ris":"DATA","bibtex":"misc","citeproc":"dataset","schemaOrg":"Dataset","resourceType":"Dataset","resourceTypeGeneral":"Dataset"},"relatedIdentifiers":[{"relationType":"IsSupplementTo","relatedIdentifier":"10.1080/02786826.2016.1139685","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":["638647 Bytes"],"formats":[],"version":null,"rightsList":[{"rights":"Creative Commons Attribution 4.0 International","rightsUri":"https://creativecommons.org/licenses/by/4.0/legalcode","schemeUri":"https://spdx.org/licenses/","rightsIdentifier":"cc-by-4.0","rightsIdentifierScheme":"SPDX"}],"descriptions":[{"description":"A particle trap laser desorption mass spectrometer (PT-LDMS) has been developed for the online measurements of the chemical composition of submicron aerosol particles. The PT-LDMS was evaluated by both laboratory and ambient measurements, with the focus being the quantification of sulfate aerosols. Ammonium sulfate ((NH\u003csub\u003e4\u003c/sub\u003e)\u003csub\u003e2\u003c/sub\u003eSO\u003csub\u003e4\u003c/sub\u003e) is generally the predominant form of sulfate aerosols in urban air; hence, it is used as a material for laboratory experiments and calibration. Major fragments of (NH\u003csub\u003e4\u003c/sub\u003e)\u003csub\u003e2\u003c/sub\u003eSO\u003csub\u003e4\u003c/sub\u003e were observed at mass-to-charge ratios (\u003ci\u003em\u003c/i\u003e/\u003ci\u003ez\u003c/i\u003e) of 48 (SO\u003csup\u003e+\u003c/sup\u003e) and 64 (SO\u003csub\u003e2\u003c/sub\u003e\u003csup\u003e+\u003c/sup\u003e). The dependence of sensitivity (expressed as the ratio of \u003ci\u003em\u003c/i\u003e/\u003ci\u003ez\u003c/i\u003e 48 signal to sulfate mass) on laser power and cell temperature was investigated. An intercomparison of PT-LDMS with a commercial sulfate particle analyzer (SPA) and filter sampling was performed in Tokyo. Good agreement was observed between SPA and filter analysis (slope = 0.98, \u003ci\u003er\u003c/i\u003e\u003csup\u003e2\u003c/sup\u003e = 0.99). Although the mass concentration of sulfate measured by PT-LDMS exhibited a tight correlation with that measured by SPA, the mass concentration measured by PT-LDMS tended to underestimate that measured by SPA (slope = 0.70, \u003ci\u003er\u003c/i\u003e\u003csup\u003e2\u003c/sup\u003e = 0.96). While the discrepancy can be mainly attributed to the difference in size cut between PT-LDMS (approximately PM\u003csub\u003e1\u003c/sub\u003e) and SPA (PM\u003csub\u003e2.5\u003c/sub\u003e), differences in vaporization efficiency were also found to be important. Copyright © 2016 American Association for Aerosol Research","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"xml":"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