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Determination of arsenic in a nickel alloy by flow injection hydride generation atomic absorption spectrometry

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dc.contributor.authorTyson, Julian
dc.contributor.authorHanna, C P
dc.contributor.authorOffley, S G
dc.contributor.departmentUniversity of Massachusetts Amherst
dc.contributor.departmentUniversity of Massachusetts Amherst
dc.contributor.departmentLoughborough University of Technology
dc.date2023-09-23T16:29:35.000
dc.date.accessioned2024-04-26T09:00:20Z
dc.date.available2024-04-26T09:00:20Z
dc.date.issued1992
dc.description.abstractThe development of a method for the direct determination of trace arsenic quantities in nickel alloy digests, by flow injection hydride generation atomic absorption spectrometry, is described. An optimization study of the manifold and chemical parameters produced system performance, in terms of tolerance of the nickel matrix and sensitivity, such that matrix removal and pre-reduction of As(V) to As (111) prior to arsine generation were eliminated. Full recovery of the As(V) signal from a solution containing 5 ng m1- 1 in the presence of 60 µg mJ- 1 nickel was obtained. Validation of the method was achieved by analyzing a British Chemical Standard (BCS) Certified Reference Material (CRM) #346 IN nickel alloy containing arsenic at a concentration of 50 µg g- 1• Following dissolution in nitric and hydrofluoric acids by a microwave assisted procedure, the only subsequent preparation required was dilution by the appropriate factor. Up to 60 injections h- 1 may be made, with a detection limit of 0.5 ng m1- 1 arsenic (250 pg absolute) as As(V) in a 500 µI sample. The peak height characteristic concentration is 0.46 ng m1- 1, with a relative standard deviation of 3.5% for a 10 ng m1- 1 As(V) standard (n= 6).
dc.description.pages1065-1073
dc.identifier.urihttps://hdl.handle.net/20.500.14394/6523
dc.relation.ispartofSpectrochimica Acta Part B
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=2571&context=chem_faculty_pubs&unstamped=1
dc.source.issue47B
dc.source.statuspublished
dc.subjectChemistry
dc.subjectArsenic
dc.subjectNickel alloy
dc.subjectFlow Injection
dc.subjectHydride
dc.subjectGeneration
dc.subjectAtomic Absorption Spectrometry
dc.subjectChemistry
dc.titleDetermination of arsenic in a nickel alloy by flow injection hydride generation atomic absorption spectrometry
dc.typearticle
dc.typearticle
digcom.contributor.authorTyson, Julian
digcom.contributor.authorHanna, C P
digcom.contributor.authorOffley, S G
digcom.identifierchem_faculty_pubs/1303
digcom.identifier.contextkey9423397
digcom.identifier.submissionpathchem_faculty_pubs/1303
dspace.entity.typePublication
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