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[{"key": "dc.contributor.advisor", "value": "Kalenius, Elina", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Ikonen, Elias", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Heininen, Juho", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2018-04-05T10:57:27Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2018-04-05T10:57:27Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2018", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1866793", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/57491", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Base oil production from crude oil has become more complex as demanded product properties, yield objective and field competition have increased interest in research towards high viscosity index (VI) base oils. Conventional lubricant grade base oil enjoyed biggest market share until 2000-2004 but now high VHVI product demands have introduced also novel production methods for heavy-type base oils such as Ficsher-Tropsch method based gas-to-liquid (GTL) and poly-internal-olefin (PIO) base oils. In this MSc, different mass spectrometric methods for heavy and base oils where compared and in-house field ionization method was characterized and method validation was begun. Base oil mass analytics uses mainly Fourier transformation ion cyclotron resonance (FT-ICR) and sector mass analyzers with soft ionization methods as well as novel ambient ionization (AI) methods. While heaviest asphaltenes compounds require resolutions that are achievable only by FT-ICR instruments majority of petroleum studies including quantitative fraction studies can be done with more cost-efficient and operator-friendly sector and Orbitrap instruments. Novel AI methods are arguably fastest expanding area of mass spectrometry and provide interesting field to follow also for petroleum analysis.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Perus\u00f6ljyjen vaaditut ominaisuudet, saantotavoitteet ja kilpailu alalla ovat kasvaneet muuttaen perus\u00f6ljyteollisuuden tuotannon monimutkaisemmaksi ja haastavammaksi lis\u00e4ten tutkimuksen vaatimuksia kohti korkean viskositeetin perus\u00f6ljyj\u00e4. Tavanomaiset perus\u00f6ljyt ovat olleet hallitsevassa markkina-asemassa vuoteen 2000-2004 asti, mutta nyky\u00e4\u00e4n korkean viskositeetin vaatimukset ovat tuoneet uusia tuotantomenetelmi\u00e4, kuten Fischer-Tropsch synteesiin perustuva gas-to-liquid (GTL) tai poly-internal-olefin (PIO) -\u00f6ljyj\u00e4. Pro gradu -ty\u00f6n kirjallisessa osassa esitettiin ja vertailtiin massaspektrometrisia menetelmi\u00e4 perus\u00f6ljyjen ja raskaiden \u00f6ljyjen tutkimiseen. Ty\u00f6n kokeellisessa osassa yrityksen sis\u00e4inen kentt\u00e4ionisaatio (FI) -menetelm\u00e4 karakterisoitiin ja validointi aloitettiin. Massa-analysaattorina perus\u00f6ljyanalytiikka k\u00e4ytt\u00e4\u00e4 yleisesti Fourier-muunnosta hy\u00f6dynt\u00e4vi\u00e4 ionisyklotroniresistanssi (FT-ICR)- tai sektorianalysaattoreita yhdess\u00e4 pehmeiden, sek\u00e4 AI-ionisaatiomenetelmien kanssa. Raskaimpien asfalteenien mittauksen tarvitessa viel\u00e4 FT-ICR-analysaattoria valtaosa tutkimuksesta voidaan tehd\u00e4 kustannustehokkaammalla ja k\u00e4ytt\u00e4j\u00e4yst\u00e4v\u00e4llisemm\u00e4ll\u00e4 sektorianalysaattorilla ja eneneviss\u00e4 m\u00e4\u00e4rin my\u00f6s Orbitrap-analysaattorilla. Nopeimmin kasvava ionisaatiomenetelm\u00e4alue on AI-menetelm\u00e4t, jotka pyrkiv\u00e4t ionisoimaan n\u00e4ytteen ilman ylim\u00e4\u00e4r\u00e4ist\u00e4 esik\u00e4sittely\u00e4. AI-menetelmist\u00e4 useilla pystyt\u00e4\u00e4n mittaamaan perus\u00f6ljyn tapaisia yhdisteit\u00e4 ja AI-menetelm\u00e4t tarjoavat mielenkiintoisen alueen seurata petrolikemian analyysimenetelmien kannalta.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Juho Heininen (juhetahe) on 2018-04-05 10:57:26.975963. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2018-04-05T10:57:27Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201804051926.pdf: 2585946 bytes, checksum: 0f24f679d5ff13c1c1ffcda7f5fa6441 (MD5)\r\nlicense.html: 4805 bytes, checksum: 40c21ec99c6c7f1ee6c7532fe3042b30 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2018-04-05T10:57:27Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201804051926.pdf: 2585946 bytes, checksum: 0f24f679d5ff13c1c1ffcda7f5fa6441 (MD5)\r\nlicense.html: 4805 bytes, checksum: 40c21ec99c6c7f1ee6c7532fe3042b30 (MD5)\r\n Previous issue date: 2018", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (95 sivua)", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.title", "value": "Mass spectrometric analysis of heavy and base oils", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201804051926", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Kemian laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Chemistry", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ep\u00e4orgaaninen ja analyyttinen kemia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Inorganic and Analytical Chemistry", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2018-04-05T10:57:27Z", "language": "", "element": "date", "qualifier": "updated", 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"qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "\u00f6ljynjalostus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "voiteluaineet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "raskas poltto\u00f6ljy", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "\u00f6ljytuotteet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tuotekehitys", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "viskositeetti", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "analyysimenetelm\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "massaspektrometria", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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