Development of fast analysis methods for extractives in papermaking process waters

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Show simple item record Valto, Piia 2011-11-25T08:08:22Z 2011-11-25T08:08:22Z 2011
dc.identifier.isbn 978-951-39-4399-8
dc.identifier.issn 0357-346X
dc.identifier.uri en
dc.description.abstract A fast analysis method with an online sample enrichment technique for the analysis of resin and fatty acids present in papermaking process waters was developed. This method was based on atmospheric pressure chemical ionization (APCI) and mass spectrometry (MS) for the detection of [M-H]- ions of compounds of interest. The method was applied to the control of the most prevalent resin (dehydroabietic and abietic) and fatty (palmitic, stearic, oleic, and linolenic) acid levels in papermaking process waters. Continuous data on these acids are of practical importance when predicting possible deposit-derived problems in the paper machine. The first part of the study was focused on the development of an online sample enrichment system for the analysis equipment used. The method was partially validated and tested for the selected resin and fatty acids in aqueous media and papermaking process waters. The online sample enrichment step was connected to the analytical system through a standard high-performance liquid chromatography (HPLC) precolumn and time-controlled column switching valves. In the second part, the feasibility of the method developed was tested by means of three different applications: laboratory-scale online sample enrichment studies, enrichment of resin and fatty acids when increasing water reuse, and the development of a faster offline laboratory method with HPLC column separation. The column separation was validated by means of selectivity, repeatability, precision, and limits of detection (LOD). These validation results clearly indicated that the HPLC-APCI-MS method with column separation was applicable for this purpose. The analysis system developed provides a potential tool for monitoring selected resin and fatty acids for many applications of practical importance. It was noticed that measuring only the resin acid concentration level, for example, may offer a possible indirect control method for papermaking. The results also indicated that the fast offline HPLC-APCI-MS technique with column separation of the compounds of interest is a useful alternative to other traditional analysis methods such as gas chromatography (GC). The main benefits of this new method are simplicity of use, absence of the need for multistage sample pretreatment, and rapidity of measurement. fi
dc.format.extent verkkoaineisto (73 sivua).
dc.language.iso eng
dc.publisher University of Jyväskylä
dc.relation.ispartofseries Research report / Department of Chemistry, University of Jyväskylä no. 146.
dc.relation.isversionof ISBN 978-951-39-4399-8
dc.rights openAccess fi
dc.subject.other hartsihapot
dc.subject.other fatty acids
dc.subject.other HPLC-MS
dc.subject.other method validation
dc.subject.other papermaking
dc.subject.other process waters
dc.subject.other mass spectrometry
dc.subject.other resin acids
dc.subject.other wood extractives
dc.subject.other waste waters
dc.subject.other liquid chromatography
dc.title Development of fast analysis methods for extractives in papermaking process waters
dc.type Diss. fi
dc.identifier.urn URN:ISBN:978-951-39-4399-8
dc.subject.ysa paperinvalmistus
dc.subject.ysa rasvahapot
dc.subject.ysa uudelleenkäyttö
dc.subject.ysa ympäristönsuojelu
dc.subject.ysa jätevesi
dc.subject.ysa kierrätys
dc.subject.ysa nestekromatografia
dc.subject.ysa validiointi
dc.subject.ysa massaspektrometria
dc.subject.ysa prosessivedet
dc.subject.kota 116
dc.type.dcmitype Text en
dc.type.ontasot Väitöskirja fi
dc.type.ontasot Doctoral dissertation en
dc.contributor.tiedekunta Matemaattis-luonnontieteellinen tiedekunta fi
dc.contributor.tiedekunta Faculty of Mathematics and Science en
dc.contributor.laitos kemian laitos fi
dc.contributor.yliopisto University of Jyväskylä en
dc.contributor.yliopisto Jyväskylän yliopisto fi
dc.contributor.oppiaine soveltava kemia fi

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