The determination of trace element concentrations in fly ash samples using ultrasound-assisted digestion followed with inductively coupled plasma optical emission spectrometry

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dc.contributor.author Ilander, Aki
dc.contributor.author Väisänen, Ari
dc.date.accessioned 2011-06-15T11:12:29Z
dc.date.available 2011-06-15T11:12:29Z
dc.date.issued 2009
dc.identifier.citation Ilander, 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.issn 1350-4177
dc.identifier.uri http://hdl.handle.net/123456789/27183
dc.description.abstract A 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.iso eng
dc.publisher Elsevier
dc.relation.ispartofseries Ultrasonics Sonochemistry
dc.rights © Elsevier
dc.subject.other emission spectrometry en
dc.subject.other ultrasound en
dc.subject.other trace elements en
dc.subject.other fly ash en
dc.subject.other emissiospetrometria fi
dc.subject.other ultraääni fi
dc.subject.other mikroaalto fi
dc.subject.other lentotuhka fi
dc.subject.other hivenaineet fi
dc.title The determination of trace element concentrations in fly ash samples using ultrasound-assisted digestion followed with inductively coupled plasma optical emission spectrometry
dc.type Article en
dc.identifier.urn URN:NBN:fi:jyu-2011061511016
dc.subject.kota 116
dc.contributor.laitos Kemian laitos fi
dc.contributor.laitos Department of Chemistry en
dc.type.uri http://purl.org/eprint/type/SubmittedJournalArticle
dc.identifier.doi doi:10.1016/j.ultsonch.2009.03.001
dc.description.version Final draft
eprint.status http://purl.org/eprint/type/status/PeerReviewed

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