A fast microwave-assisted, acid-vapor, steam-cleaning procedure for autosampler cups

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBarnes, Ramon M.
dc.creatorQuinaia, Sueli P.
dc.creatorNóbrega, Joaquim A.
dc.creatorBlanco, Thelma
dc.date2014-05-20T15:26:54Z
dc.date2016-10-25T18:01:34Z
dc.date2014-05-20T15:26:54Z
dc.date2016-10-25T18:01:34Z
dc.date1998-05-29
dc.date.accessioned2017-04-05T23:59:11Z
dc.date.available2017-04-05T23:59:11Z
dc.identifierSpectrochimica Acta Part B-atomic Spectroscopy. Oxford: Pergamon-Elsevier B.V., v. 53, n. 5, p. 769-771, 1998.
dc.identifier0584-8547
dc.identifierhttp://hdl.handle.net/11449/36965
dc.identifierhttp://acervodigital.unesp.br/handle/11449/36965
dc.identifier10.1016/S0584-8547(98)00114-1
dc.identifierWOS:000074516600011
dc.identifierhttp://dx.doi.org/10.1016/S0584-8547(98)00114-1
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/880370
dc.descriptionA new and fast procedure is proposed for cleaning autosampler cups using acid-vapor steam-cleaning with a miniaturized assembly in a microwave-heated sealed Teflon vessel. A glass cactus-shaped holder was made to support six polyethylene autosampler cups (volume, 2.0 mt) inside a 100 mt microwave vessel. Regent-grade nitric acid was added to the vessels, and the system was heated in a microwave oven for 5 min at 300 W. Chromium was determined by graphite-furnace atomic-absorption spectrophotometry. The blank values were lower with cleaned cups compared to untreated cups (i.e., as received from supplier). The quantification limits, estimated from detection limits established with Milli-Q water, were 0.66 and 0.95 mu g Cr L-1 for cleaned and untreated auto-sampler cups, respectively. (C) 1998 Elsevier B.V. B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationSpectrochimica Acta Part B-atomic Spectroscopy
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectvapor-phase cleaning
dc.subjectautosampler cups
dc.subjectCr
dc.subjectgraphite-furnace atomic-absorption spectrophotometry
dc.titleA fast microwave-assisted, acid-vapor, steam-cleaning procedure for autosampler cups
dc.typeOtro


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