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[{"key": "dc.contributor.author", "value": "Runsas, Tiina", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2012-05-07T17:37:26Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2012-05-07T17:37:26Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2012", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1216156", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/37786", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "R\u00e4j\u00e4hdysaineiden kulkeutuminen maaper\u00e4\u00e4n ja vesit\u00f6ihin aiheuttaa merkitt\u00e4v\u00e4n ymp\u00e4rist\u00f6riskin, sill\u00e4 toksikologisissa tutkimuksissa r\u00e4j\u00e4hdysaineiden on havaittu aiheuttavan monia terveydellisi\u00e4 haittoja ja ne ovat myrkyllisi\u00e4 el\u00e4ville organismeille. T\u00e4m\u00e4n johdosta r\u00e4j\u00e4hdysaineita sis\u00e4lt\u00e4vien ymp\u00e4rist\u00f6n\u00e4ytteiden analysointiin on kehitetty monia menetelmi\u00e4, jotta koko ekosysteemi\u00e4 kohtaavat vahingot voitaisiin tunnistaa ja suorittaa kunnostustoimenpiteit\u00e4 kontaminoituneilla alueilla. \n\nT\u00e4ss\u00e4 Pro gradu-tutkielmassa tarkastellaan r\u00e4j\u00e4hdysaineita, niiden ymp\u00e4rist\u00f6- ja terveysvaikutuksia sek\u00e4 r\u00e4j\u00e4hdysaineita sis\u00e4lt\u00e4vien maan\u00e4ytteiden uuttamista ja analysointia. Tutkielmassa selvitet\u00e4\u00e4n nestekromatografisen systeemin toimintaperiaate sek\u00e4 k\u00e4yd\u00e4\u00e4n l\u00e4pi analyysimenetelmien validointiin ja laadunvarmistukseen liittyvi\u00e4 asioita.\n\nErikoisty\u00f6ss\u00e4 verrattiin r\u00e4j\u00e4hdysaineita sis\u00e4lt\u00e4vien maan\u00e4ytteiden uuttamiseen k\u00e4ytettyj\u00e4 kolmea n\u00e4ytteen esik\u00e4sittelymenetelm\u00e4\u00e4. N\u00e4ytteiden uuttaminen suoritettiin mekaanisella ravistelulla, nopeutetulla liuotinuutolla ja mikroaaltoavusteisella uutolla. Analyyttien pitoisuudet analysoitiin nestekromatografisesti ja yhdisteiden detektointi suoritettiin UV-detektorilla. Menetelm\u00e4n validointi suoritettiin viiden validointiparametrin (selektiivisyys, spesifisyys, lineaarisuus, toistotarkkuus, oikeellisuus) avulla ja se soveltui hyvin maan\u00e4ytteist\u00e4 uutettujen analyyttien pitoisuusm\u00e4\u00e4rityksiin. \n\nEsik\u00e4sittelymenetelmien v\u00e4lisess\u00e4 vertailussa mekaaninen ravistelu todettiin suhteellisen tarkaksi ja toistettavaksi menetelm\u00e4ksi, jolla on kohtalainen uutto-tehokkuus. Nopeutetussa liuotinuutossa uuttolaitteisto oli tekniselt\u00e4 toiminta-varmuudeltaan huono, mutta se oli uuttotehokkuudeltaan paras. Mikroaalto-avusteinen uutto oli suhteellisen tarkka ja toistettava esik\u00e4sittelymenetelm\u00e4, mutta sen uuttotehokkuus oli huono, joten menetelm\u00e4n optimointia on jatkettava tulevaisuudessa.\n\u2003", "language": null, "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Tiina Runsas (tikaruns) on 2012-05-07 17:37:25.561240. Form: Pro gradu -lomake (1 tekij\u00e4) (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake-1-tekijae). JyX data:", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2012-05-07T17:37:26Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201205071620.pdf: 1038323 bytes, checksum: 377fa98d2990b8564c52a787c488c526 (MD5)\nlicense.html: 5012 bytes, checksum: 7f9cce040fc6f4c9d89c71814e8dc8b3 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2012-05-07T17:37:26Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201205071620.pdf: 1038323 bytes, checksum: 377fa98d2990b8564c52a787c488c526 (MD5)\nlicense.html: 5012 bytes, checksum: 7f9cce040fc6f4c9d89c71814e8dc8b3 (MD5)\n Previous issue date: 2012", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "70 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": "ymp\u00e4rist\u00f6analyysit", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "r\u00e4j\u00e4hdysaineet", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "TNT", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "RDX", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "HMX", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mikroaaltoavusteinen uutto", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "nopeutettu liuotinuutto", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mekaaninen ravistelu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "HPLC", "language": "", "element": "subject", "qualifier": 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