<?xml version="1.0"?><rdf:RDF xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xmlns:wgs84_pos="http://www.w3.org/2003/01/geo/wgs84_pos" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdaGr2="http://rdvocab.info/ElementsGr2" xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:dcterms="http://purl.org/dc/terms/"><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-NELFQH13/c6a0d068-4276-41b2-ba86-a33538c0570e/HTML"><dcterms:extent>20 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-NELFQH13/28016a75-fad0-491e-9143-b9c5e9da771d/PDF"><dcterms:extent>175 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-NELFQH13/e6c139bf-2861-4140-8d83-432d93734a53/TEXT"><dcterms:extent>17 KB</dcterms:extent></edm:WebResource><edm:TimeSpan rdf:about="2000-2024"><edm:begin xml:lang="en">2000</edm:begin><edm:end xml:lang="en">2024</edm:end></edm:TimeSpan><edm:ProvidedCHO rdf:about="URN:NBN:SI:DOC-NELFQH13"><dcterms:isPartOf rdf:resource="https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21" /><dcterms:issued>2011</dcterms:issued><dc:creator>Kucharczyk, Pavel</dc:creator><dc:creator>Sedlarik, Vladimír</dc:creator><dc:creator>Urbánek, Pavel</dc:creator><dc:creator>Vesel, Alenka</dc:creator><dc:format xml:lang="sl">številka:3</dc:format><dc:format xml:lang="sl">letnik:45</dc:format><dc:format xml:lang="sl">str. 213-216</dc:format><dc:identifier>ISSN:1580-2949</dc:identifier><dc:identifier>COBISSID:858538</dc:identifier><dc:identifier>URN:URN:NBN:SI:doc-NELFQH13</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="sl">Inštitut za kovinske materiale in tehnologije</dc:publisher><dcterms:isPartOf xml:lang="sl">Materiali in tehnologije</dcterms:isPartOf><dc:subject xml:lang="sl">fluorimetrija</dc:subject><dc:subject xml:lang="sl">katalizatorji</dc:subject><dc:subject xml:lang="sl">kositer</dc:subject><dc:subject xml:lang="sl">polilaktična kislina</dc:subject><dc:subject xml:lang="sl">rentgenska fotoelektronska spektroskopija</dc:subject><dc:subject rdf:resource="http://www.wikidata.org/entity/Q1096" /><dcterms:temporal rdf:resource="2000-2024" /><dc:title xml:lang="sl">A novel approach for qualitative determination of residual tin based catalyst in poly(lactic acid) by X-Ray photoelectron spectroscopy| Nov način kvalitativne določitve vsebnosti katalizatorja kositra v polilaktični kislini z rentgensko fotoelektronsko spektroskopijo|</dc:title><dc:description xml:lang="sl">This work is focused on description of qualitative determination of residual tin based catalysts in poly(lactic acid) by using X-ray photoelectron spectroscopy and fluorimetry as standard technique. Three types of poly(lactic acid) were prepared by direct melt polycondensation of lactic acid by using methanesulfonic acid (w = 0.5 %) or various amount of stannous 2-ethylhexanoate (w = (0.5 and 2) %). The results from both methods show that the amount of observed tin in the samples correlates with the concentration ofthe stannous 2-ethylhexanoate used for polycondensation. X-ray photoelectron spectroscopy was proven to be suitable for detection of tin residuals in polymer matrix</dc:description><dc:description xml:lang="sl">Delo je osredinjeno na opis kvalitativne določitve katalizatorjev na osnovi kositra v polilaktični kislini z uporabo rentgenske fotoelektronske spektroskopije in fluorimetrije. Tri vrste polilaktične kisline smo pripravili z neposredno polikondenzacijo laktične kisline z uporabo metansulfonske kisline (w = 0,5 %) ali različne količine kositrovega 2-etilheksanoata (w = (0,5 in 2)%). Rezultati obeh metod kažejo, da je vsebnost kositra v vzorcih povezana s koncentracijo kositrovega 2-etilheksanoata, ki se uporablja za polikondenzacijo. Rentgenska fotoelektronska spektroskopija se je izkazala kot primerna metoda za odkrivanje majhnih vsebnosti kositra v polimerni matrici</dc:description><edm:type>TEXT</edm:type><dc:type xml:lang="sl">znanstveno časopisje</dc:type><dc:type xml:lang="en">journals</dc:type><dc:type rdf:resource="http://www.wikidata.org/entity/Q361785" /></edm:ProvidedCHO><ore:Aggregation rdf:about="http://www.dlib.si/?URN=URN:NBN:SI:DOC-NELFQH13"><edm:aggregatedCHO rdf:resource="URN:NBN:SI:DOC-NELFQH13" /><edm:isShownBy rdf:resource="http://www.dlib.si/stream/URN:NBN:SI:DOC-NELFQH13/28016a75-fad0-491e-9143-b9c5e9da771d/PDF" /><edm:rights rdf:resource="http://rightsstatements.org/vocab/InC/1.0/" /><edm:provider>Slovenian National E-content Aggregator</edm:provider><edm:intermediateProvider xml:lang="en">National and University Library of Slovenia</edm:intermediateProvider><edm:dataProvider xml:lang="sl">Inštitut za kovinske materiale in tehnologije</edm:dataProvider><edm:object rdf:resource="http://www.dlib.si/streamdb/URN:NBN:SI:DOC-NELFQH13/maxi/edm" /><edm:isShownAt rdf:resource="http://www.dlib.si/details/URN:NBN:SI:DOC-NELFQH13" /></ore:Aggregation></rdf:RDF>