| fullrecord |
[{"key": "dc.contributor.advisor", "value": "V\u00e4is\u00e4nen, Ari", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Lehtim\u00e4ki, Esa", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Louhenvirta, Toni", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2016-07-05T14:20:45Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2016-07-05T14:20:45Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2016", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1561771", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/50716", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4m\u00e4n Pro gradu -tutkielman kirjallisessa osassa k\u00e4sitell\u00e4\u00e4n monipuolisesti elohopeaa ja seleeni\u00e4 k\u00e4yden l\u00e4pi muun muassa niiden ominaisuuksia ja k\u00e4ytt\u00f6kohteita, niiden vaikutusta terveyteen, sek\u00e4 m\u00e4\u00e4ri\u00e4 ravinnossa ja muissa l\u00e4hteiss\u00e4. T\u00e4m\u00e4n lis\u00e4ksi kirjoitelmassa k\u00e4sitell\u00e4\u00e4n n\u00e4ytteenk\u00e4sittelymenetelmist\u00e4 ultra\u00e4\u00e4ni- ja mikroaaltohajotukset, sek\u00e4 kemialliseen h\u00f6yryn muodostukseen mahdollisesti tarvittu esipelkistys. Analyysimenetelm\u00e4n\u00e4 l\u00e4pi k\u00e4yd\u00e4\u00e4n kokeellisessa osassa k\u00e4ytetyn induktiivisesti kytketty plasma-optinen emissiospektrometri (ICP-OES) -laitteen tekniikkaa, sek\u00e4 kemiallisen h\u00f6yryn muodostuksen periaatteet ja siin\u00e4 k\u00e4ytetty laitteisto. My\u00f6s mahdolliset mittauksissa esiintyv\u00e4t h\u00e4iri\u00f6t k\u00e4yd\u00e4\u00e4n tarvittavilta osin l\u00e4pi.\n\nTy\u00f6n kokeellisessa osassa tutkittiin elohopean ja seleenin m\u00e4\u00e4rityst\u00e4 kemiallinen h\u00f6yryn muodostus induktiivisesti kytketty plasma-optinen emissiospektrometri (CVG-ICP-OES) -laitteistolla k\u00e4ytt\u00e4en alussa referenssimateriaalia TORT-2 (hummerin haima), ja lopulliset tulokset saatiin referenssimateriaaleilla TORT-3 (hummerin haima), sek\u00e4 DOLT-5 (kalan maksa). N\u00e4ytteiden lopullisena liuotusmenetelm\u00e4n\u00e4 p\u00e4\u00e4dyttiin k\u00e4ytt\u00e4m\u00e4\u00e4n mikroaaltouunihajotusta ja erilaisten liuosvaihtoehtojen j\u00e4lkeen toimivammaksi todettiin yhteistilavuudeltaan 8 ml hajotusliuos, jossa oli 3 ml kuningasvett\u00e4, 2 ml vetyperoksidia ja 3 ml vett\u00e4. N\u00e4in happotausta s\u00e4ilyi maltillisena elohopean m\u00e4\u00e4rityst\u00e4 varten, mink\u00e4 pitoisuus n\u00e4ytteess\u00e4 oli pienin ja liiallista laimennosta haluttiin v\u00e4ltt\u00e4\u00e4. Pelkistimen\u00e4 elohopealla p\u00e4\u00e4dyttiin k\u00e4ytt\u00e4m\u00e4\u00e4n 1 % SnCl2:ta, joka oli 2,5 % HCl taustassa. Seleenill\u00e4 pelkistyksess\u00e4 k\u00e4ytettiin 0,3 % NaBH4:\u00e4, joka oli 0,05 % NaOH:ssa. Kosteutta referenssimateriaaleilla oli TORT-3:lla (4,2 \u00b1 0,1) % ja DOLT-5:ll\u00e4 (11,6 \u00b1 0,3) %, joista j\u00e4lkimm\u00e4inen on selke\u00e4sti suurempi kuin valmistajan arvioima kosteusprosentti. Referenssimateriaaleille saannoiksi saatiin kosteusprosentti huomioiden TORT-3:lla elohopealle 85,2 % ja seleenille 82,6 %. DOLT-5:ll\u00e4 saanto elohopealle oli 100,7 % ja seleenille 98,9 %.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Toni Louhenvirta (tomajulo) on 2016-07-05 14:20:45.064900. 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 2016-07-05T14:20:45Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201607053491.pdf: 1361517 bytes, checksum: 1e6a7b823ed3a2287c347c942ce2dac6 (MD5)\nlicense.html: 4865 bytes, checksum: f99d85ea415f7020028a1a8a4b89186d (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2016-07-05T14:20:45Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201607053491.pdf: 1361517 bytes, checksum: 1e6a7b823ed3a2287c347c942ce2dac6 (MD5)\nlicense.html: 4865 bytes, checksum: f99d85ea415f7020028a1a8a4b89186d (MD5)\n Previous issue date: 2016", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (101 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": "elohopea", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "seleeni", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "CVG-ICP-OES", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Seleeni- ja elohopeapitoisuuksien m\u00e4\u00e4ritt\u00e4minen biologisista n\u00e4ytteist\u00e4 CVG-ICP-OES -menetelm\u00e4ll\u00e4", "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-201607053491", "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": "2016-07-05T14:20:46Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": null, "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "4031", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "elohopea", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "seleeni", "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"}]
|