Show simple item record

dc.contributor.authorBralatei, Edi
dc.contributor.authorNekrosiute, Karolina
dc.contributor.authorRonan, Jenny
dc.contributor.authorRaab, Andrea
dc.contributor.authorMcGovern, Evin
dc.contributor.authorStengel, Dagmar B.
dc.contributor.authorKrupp, Eva M.
dc.contributor.authorFeldmann, Joerg
dc.date.accessioned2019-08-15T10:47:06Z
dc.date.available2019-08-15T10:47:06Z
dc.date.issued2017
dc.identifier.citationBralatei, E., Nekrosiute, K., Ronan, J., Raab, A., McGovern, E., Stengel, D. B., … Feldmann, J. (2017). A field deployable method for a rapid screening analysis of inorganic arsenic in seaweed. Microchimica Acta, 184(6), 1701–1709. https://doi.org/10.1007/s00604-017-2151-1en_US
dc.identifier.issn0026-3672
dc.identifier.issn1436-5073
dc.identifier.urihttp://hdl.handle.net/10793/1412
dc.descriptionPeer reviewed paper. Link to Publisher Version: https://link.springer.com/article/10.1007%2Fs00604-017-2151-1 This is a post-peer-review, pre-copyedit version of an article published in Microchimica Acta. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00604-017-2151-1en_US
dc.description.abstractInorganic arsenic (iAs) in 13 store-bought edible seaweed samples and 34 dried kelp (Laminaria digitata) samples was determined by a newly developed, field-deployable method (FDM) with the aid of a field test kit for arsenic in water. Results from the FDM were compared to results from speciation analysis achieved by using high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC-ICP-MS). The FDM consisted of a simple extraction method using diluted HNO3 to quantitatively extract iAs without decomposing the organoarsenicals to iAs followed by the selective volatilisation of iAs as arsine (AsH3) and subsequent chemo-trapping on a filter paper soaked in mercury bromide (HgBr2) solution. Method optimization with a sub-set of samples showed 80–94% iAs recovery with the FDM with no matrix effect from organo-arsenic species in the form of dimethylarsinic acid (DMA) on the iAs concentration. The method displayed good reproducibility with an average error of ±19% and validation by HPLC-ICP-MS showed that the results from the FDM were comparable (slope = 1.03, R2 = 0.70) to those from speciation analysis with no bias. The FDM can be conducted within an hour and the observed limit of quantification was around 0.05 mg kg−1 (dry weight). This method is well suited for on-site monitoring of iAs in seaweed before it is harvested and can thus be recommended for use as a screening method for iAs in seaweed.en_US
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.relation.ispartofseriesMicrochimica Acta;184(6)
dc.subjectGutzeit methoden_US
dc.subjectSpeciationen_US
dc.subjectHyphenated methoden_US
dc.subjectHPLC-ICPMSen_US
dc.subjectSeaweeden_US
dc.subjectLaminariaen_US
dc.subjectKelpen_US
dc.titleA field deployable method for a rapid screening analysis of inorganic arsenic in seaweed.en_US
dc.typeArticleen_US
dc.identifier.doi10.1007/s00604-017-2151-1
dc.source.volume184
dc.source.issue6
dc.source.beginpage1701-1709
refterms.dateFOA2019-08-15T10:47:07Z


Files in this item

Thumbnail
Name:
Inorganic arsenic... Ireland ...
Size:
423.5Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record