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dc.contributor.authorIlander, Aki
dc.contributor.authorVäisänen, Ari
dc.date.accessioned2011-06-15T11:12:29Z
dc.date.available2011-06-15T11:12:29Z
dc.date.issued2009
dc.identifier.citationIlander, A. & Väisänen, A. (2009). The determination of trace element concentrations in fly ash samples using ultrasound-assisted digestion followed with inductively coupled plasma optical emission spectrometry. Ultrasonics Sonochemistry, 16 (6), 763-768.
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/27183
dc.description.abstractA method of ultrasound-assisted digestion followed by inductively coupled plasma optical emission spectrometry (ICP-OES) used for the determination of trace element (chromium, copper, lead, nickel, vanadium and zinc) concentrations in fly ash samples was developed. All the measurements were performed in robust plasma conditions. Ultrasound-assisted digestion procedures using digestion solutions of aqua regia and hydrofluoric acid (HF) resulted in recovery rates of over 80% for all the analyte elements. Ultrasound-assisted two-step digestion with digestion solutions of 6 mL of HNO₃(Step 1) and 3 mL of HNO₃+ 3 mL of HF (Step 2) resulted in recovery rates of over 92% for all the analyte elements with one exception, chromium, which had a recovery of about 85%. The analysis of SRM 1633b showed that the two-step ultrasound-assisted digestion method developed resulted in chromium, copper, nickel and zinc concentrations higher than the microwave digestion method standardized by the United States Environmental Protection Agency (USEPA method 3052). This is the very first time when a digestion method using ultrasound resulted in higher efficiency than microwave (USEPA method 3052) for chromium and nickel in very hard to dissolve samples. The major advantages of the ultrasound-assisted digestion over microwave digestion is the high treatment rate (about 30 samples simultaneously with a sonication time of 18 min) and the possibility to use new sample vessels without a significant increase in costs.en
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofseriesUltrasonics Sonochemistry
dc.subject.otheremission spectrometryen
dc.subject.otherultrasounden
dc.subject.othertrace elementsen
dc.subject.otherfly ashen
dc.subject.otheremissiospetrometriafi
dc.subject.otherultraäänifi
dc.subject.othermikroaaltofi
dc.subject.otherlentotuhkafi
dc.subject.otherhivenaineetfi
dc.titleThe determination of trace element concentrations in fly ash samples using ultrasound-assisted digestion followed with inductively coupled plasma optical emission spectrometry
dc.typeArticle
dc.identifier.urnURN:NBN:fi:jyu-2011061511016
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Chemistryen
dc.type.urihttp://purl.org/eprint/type/SubmittedJournalArticle
dc.identifier.doidoi:10.1016/j.ultsonch.2009.03.001
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn1350-4177
dc.type.versionacceptedVersion
dc.rights.copyright© Elsevier
dc.rights.accesslevelopenAccessfi


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