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[{"key": "dc.contributor.advisor", "value": "V\u00e4is\u00e4nen, Ari", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Ridanp\u00e4\u00e4, Juho", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2015-05-11T12:25:26Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2015-05-11T12:25:26Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2015", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1473510", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/45844", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4ss\u00e4 Pro gradu \u2013tutkielmassa k\u00e4sitell\u00e4\u00e4n elohopean m\u00e4\u00e4rityst\u00e4 el\u00e4inkudoksesta kemiallinen h\u00f6yryn muodostus induktiivisesti kytketty plasma optinen emissio spektrometria \u2013menetelm\u00e4ll\u00e4 (CVG-ICP-OES) ja siihen liittyv\u00e4\u00e4 n\u00e4ytteenk\u00e4sittely\u00e4.\n\nTutkimuksen kirjallisessa osassa k\u00e4yd\u00e4\u00e4n l\u00e4pi muun muassa eri n\u00e4ytteenliuotusmenetelmi\u00e4, analyysimenetelmi\u00e4, tutkittavien metallien pelkist\u00e4mist\u00e4 CVG-ICP-OES \u2013analyysi\u00e4 varten ja CVG-ICP-OES \u2013analyysiss\u00e4 esiintyvi\u00e4 h\u00e4iri\u00f6it\u00e4. N\u00e4ytteenliuotusosassa keskityt\u00e4\u00e4n p\u00e4\u00e4asiassa tutkimuksessa k\u00e4ytetyn ultra\u00e4\u00e4nihajotuksen esittelyyn, t\u00e4m\u00e4n lis\u00e4ksi my\u00f6s muita yleisi\u00e4 n\u00e4ytteenliuotusmenetelmi\u00e4 esitet\u00e4\u00e4n. Analyysimenetelm\u00e4 osiossa suurin huomio keskittyy ICP-OES \u2013laitteistoon ja sen k\u00e4ytt\u00f6\u00f6n osana CVG-ICP-OES m\u00e4\u00e4rityst\u00e4. My\u00f6s yleisesti k\u00e4ytetty atomiabsorptiospektrometria \u2013laitteisto (AAS) esitell\u00e4\u00e4n, koska sit\u00e4 voidaan k\u00e4ytt\u00e4\u00e4 my\u00f6s elohopean m\u00e4\u00e4ritykseen kylm\u00e4h\u00f6yryn\u00e4 CV-AAS \u2013menetelm\u00e4n avulla. N\u00e4ytteen elohopean pelkistys sek\u00e4 NaBH4 ett\u00e4 SnCl2 avulla esitet\u00e4\u00e4n.\n\nTutkimuksen kokeellisessa osassa tutkitaan elohopean m\u00e4\u00e4rityst\u00e4 referenssimateriaaleista DOLT-4 piikkikalan maksa ja TORT-2 hummerin haima CVG-ICP-OES \u2013menetelm\u00e4ll\u00e4. N\u00e4ytteet liuotettiin ultra\u00e4\u00e4ness\u00e4 hajotusliuoksella, joka sis\u00e4lsi puolet kuningasvett\u00e4 ja puolet vett\u00e4. Elohopean pelkist\u00e4miseen k\u00e4ytettiin 0,5 %:sta NaBH4:\u00e4 0,05 %:sessa NaOH:ssa. Menetelm\u00e4n testauksen yhteydess\u00e4 huomattiin, ett\u00e4 n\u00e4yte vaahtoutuu n\u00e4ytteensy\u00f6t\u00f6ss\u00e4. T\u00e4m\u00e4 ongelma poistettiin lis\u00e4\u00e4m\u00e4ll\u00e4 n\u00e4ytteisiin dekanolia ja optimoimalla n\u00e4ytteensy\u00f6tt\u00f6\u00e4. T\u00e4ll\u00e4 menetelm\u00e4ll\u00e4 saadut tulokset elohopean pitoisuuksista referenssimateriaaleista DOLT-4 ja TORT-2 olivat eritt\u00e4in hyv\u00e4t, tulokset olivat virherajojen puitteissa samat kuin sertifioidut pitoisuudet, saantoprosenttien ollessa 102 % ja 104 %.\n\nT\u00e4m\u00e4n lis\u00e4ksi tutkittiin soveltuisiko k\u00e4ytetty liuotusmenetelm\u00e4 my\u00f6s metallien As, Cd, Cu, Ni, Zn ja Fe m\u00e4\u00e4ritt\u00e4miseen referenssimateriaaleista ICP-OES:ll\u00e4 vain n\u00e4ytteensy\u00f6tt\u00f6\u00e4 vaihtamalla. Saatujen tulosten perusteella t\u00e4m\u00e4 n\u00e4ytt\u00e4isi olevan t\u00e4ysin mahdollista. Tutkimus antoi my\u00f6s viitteit\u00e4 mahdollisuudesta m\u00e4\u00e4ritt\u00e4\u00e4 arseeni hydridin\u00e4 yhdess\u00e4 elohopean kylm\u00e4h\u00f6yryn kanssa.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Juho Ridanp\u00e4\u00e4 (juturida) on 2015-05-11 12:25:25.616994. 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@noreply.fi) on 2015-05-11T12:25:26Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201505111803.pdf: 1339675 bytes, checksum: fe2bf7b1b56be6d9af086311e93e3228 (MD5)\nlicense.html: 4836 bytes, checksum: b2e69d0c7351f41d6682545fccdcc1a8 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2015-05-11T12:25:26Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201505111803.pdf: 1339675 bytes, checksum: fe2bf7b1b56be6d9af086311e93e3228 (MD5)\nlicense.html: 4836 bytes, checksum: b2e69d0c7351f41d6682545fccdcc1a8 (MD5)\n Previous issue date: 2015", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (78 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": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "CVG-ICP-OES", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "elohopea", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "el\u00e4inkudos", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kylm\u00e4h\u00f6yry", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "hydridin muodostus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "pelkistys", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "natriumtetrahydroboraatti", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "CVG-ICP-OES -menetelm\u00e4n k\u00e4ytt\u00f6 elohopean analysointiin el\u00e4inkudoksesta", "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-201505111803", "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": "2015-05-11T12:25:26Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": 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