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[{"key": "dc.contributor.advisor", "value": "V\u00e4is\u00e4nen, Ari", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Laamanen, Taneli", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Nimell, Meeri", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2022-04-12T05:37:30Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2022-04-12T05:37:30Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2022", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/80560", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ty\u00f6n tarkoituksena oli er\u00e4\u00e4n Vihtavuoren pistooliruudin Bergmann-Junk stabiilisuustestin varmentaminen, jotta tulos menisi jatkossa asiakkaan m\u00e4\u00e4ritt\u00e4m\u00e4\u00e4n vaateeseen. Bergmann-Junk testin lis\u00e4ksi k\u00e4ytettiin muitakin ruudeille tarkoitettuja stabiilisuustestej\u00e4 sek\u00e4 Jyv\u00e4skyl\u00e4n yliopistolla Kemian laitoksen ICP-OES \u2013mittalaitetta ruutien koostumusten analysointeihin. Aikaisemmin siis tulokset olivat olleet yli asiakkaan vaateista, niiss\u00e4 oli suurta hajontaa ja useimmin ensimm\u00e4inen rinnakkaistulos oli toista pienempi, lis\u00e4ksi oli syntynyt punakaasuja l\u00e4mmityksen aikana, jonka vuoksi testej\u00e4 oli jouduttu keskeytt\u00e4m\u00e4\u00e4n. N\u00e4ihin ongelmiin pyrittiin Pro gradu \u2013projektin aikana l\u00f6yt\u00e4m\u00e4\u00e4n ratkaisut. \nProjektin aikana saatujen tulosten perusteella Bergmann-Junk testi ei toimi kemiallisesti oikein Vihtavuoren pistooliruudeille. My\u00f6s vastaavissa kilpailijaruudeissa ilmenee sama ongelma. Tutkimuksen perusteella titrausnopeudella on merkitt\u00e4v\u00e4 vaikutus Bergmann-Junk -testin tulokseen. N\u00e4in ollen, suorittamalla titrausosio testist\u00e4 hitaasti, kaikki er\u00e4t saadaan menem\u00e4\u00e4n asiakkaan vaateeseen. T\u00e4m\u00e4 tulos ei kuitenkaan ole kemiallisesti oikein, sill\u00e4 hitaasti titrattuna Bergmann-Junk testiss\u00e4 k\u00e4ytetty Tashiro-indikaattori muuttaa v\u00e4rins\u00e4 liian alhaisessa pH:ssa. Kemiallisesti oikean tuloksen mittausta varten otettiin k\u00e4ytt\u00f6\u00f6n rinnalle my\u00f6s pH-mittari seuraamaan saadun tuloksen pH-arvoa sek\u00e4 mittaamaan ruutin\u00e4ytteen titrantin kulutus ekvivalenttipisteess\u00e4 titrausk\u00e4yr\u00e4n avulla. Titrantin kulutusta ekvivalenttipisteess\u00e4 seuraamalla pystyttiin todentamaan prosessimuutoksen parantaneen ruudin stabiilisuutta sek\u00e4 suolan valmistajan merkitys mitattuihin tuloksiin.\nICP-OES \u2013mittauksen avulla saimme ep\u00e4illyt mahdollisiksi Tashiro-indikaattoria h\u00e4ritseviksi alkuaineiksi Al, Cu, Fe, B, S ja Si. Projektissa onnistuttiin varmistamaan, ett\u00e4 seuraavan tilatun pistooliruudin er\u00e4n Bergmann-Junk tulos saatiin meid\u00e4n mittauksissamme menem\u00e4\u00e4n asiakkaan asettamaan vaateeseen. Juurisyy, miksi Tashiro-indikaattori ei toimi oletetulla tavalla kyseisess\u00e4 stabiilisuustestiss\u00e4, ei t\u00e4m\u00e4n projektin aikana selvinnyt.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2022-04-12T05:37:30Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2022-04-12T05:37:30Z (GMT). No. of bitstreams: 0\n Previous issue date: 2022", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "88", "language": "", "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.title", "value": "Pistooliruudin stabiilisuustestin ja ruudin ominaisuuksien tutkiminen", "language": "", "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-202204122238", "language": "", "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": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Analyyttinen kemia", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Analytical Chemistry", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.collaborator", "value": "business", "language": "", "element": "contractresearch", "qualifier": "collaborator", "schema": "yvv"}, {"key": "yvv.contractresearch.funding", "value": "9300 \u20ac", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"key": "yvv.contractresearch.initiative", "value": "business", "language": "", "element": "contractresearch", "qualifier": "initiative", "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": null, "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": "40311", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "laboratoriot", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "projektit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kemia", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ruuti", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kemianteollisuus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tutkimusprojektit", "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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