An ultrasound-assisted digestion method for the determination of toxic element concentrations in ash samples by inductively coupled plasma optical emission spectrometry

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dc.contributor.author Ilander, Aki
dc.contributor.author Väisänen, Ari
dc.date.accessioned 2011-06-16T06:39:56Z
dc.date.available 2011-06-16T06:39:56Z
dc.date.issued 2007
dc.identifier.citation Ilander, A. & Väisänen, A. (2007). An ultrasound-assisted digestion method for the determination of toxic element concentrations in ash samples by inductively coupled plasma optical emission spectrometry. Analytica Chimica Acta, 602 (2), 195-201.
dc.identifier.issn 0003-2670
dc.identifier.uri http://hdl.handle.net/123456789/27188
dc.description.abstract method of ultrasound-assisted digestion followed by inductively coupled plasma optical emission spectrometry (ICP-OES) used for the determination of toxic element concentrations (arsenic, barium, cobalt, copper, lead, nickel, strontium, vanadium and zinc) in ash samples was developed. All the measurements were performed in robust plasma conditions which were tested by measuring the Mg(II) 280.270 nm/Mg(I) 285.213 nm line intensity ratios. The highest line intensity ratios were observed when a nebulizer gas flow of 0.6 L minˉ¹, auxiliary gas flow of 0.2 L minˉ¹ and plasma power of 1400 W were used for radially viewed plasma. The analysis of SRM 1633b showed that the ultrasound-assisted method developed is highly comparable with the microwave digestion method standardized by the United States Environmental Protection Agency (EPA-3052). The ultrasound-assisted digestion with a digestion solution of aqua regia and hydrofluoric acid (HF) resulted in recovery rates of over 81%. One exception is arsenic which resulted in recoveries of about 60% only; however, it could be digested with good recovery (>90%) using a digestion solution of 5 mL of water and 5 mL of aqua regia. The major advantage of the ultrasound-assisted digestion over microwave digestion is the high treatment rate (30 samples simultaneously with a sonication time of 18 min). en
dc.language.iso eng
dc.publisher Elsevier
dc.relation.ispartofseries Analytica Chimica Acta
dc.rights © Elsevier
dc.subject.other emission spectrometry en
dc.subject.other ultrasound en
dc.subject.other microwave en
dc.subject.other ash en
dc.subject.other toxic element en
dc.subject.other ultraääni fi
dc.subject.other mikroaalto fi
dc.subject.other tuhka fi
dc.subject.other myrkylliset alkuaineet fi
dc.title An ultrasound-assisted digestion method for the determination of toxic element concentrations in ash samples by inductively coupled plasma optical emission spectrometry
dc.type Article en
dc.identifier.urn URN:NBN:fi:jyu-2011061611021
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.aca.2007.09.015
dc.description.version Final draft
eprint.status http://purl.org/eprint/type/status/PeerReviewed

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