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DC Field | Value | Language |
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dc.contributor.author | Paleologos, E. K. | en |
dc.contributor.author | Koupparis, M. A. | en |
dc.contributor.author | Karayannis, M. I. | en |
dc.contributor.author | Veltsistas, P. G. | en |
dc.date.accessioned | 2015-11-24T16:42:49Z | - |
dc.date.available | 2015-11-24T16:42:49Z | - |
dc.identifier.issn | 0003-2700 | - |
dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/8603 | - |
dc.rights | Default Licence | - |
dc.subject | sensitive spectrophotometric determination | en |
dc.subject | atomic-absorption spectrometry | en |
dc.subject | electron-spin-resonance | en |
dc.subject | thermometric determination | en |
dc.subject | kinetic determination | en |
dc.subject | gallic acid | en |
dc.subject | oxidation | en |
dc.subject | samples | en |
dc.subject | bromate | en |
dc.subject | speciation | en |
dc.title | Nonaqueous catalytic fluorometric trace determination of vanadium based on the pyronine B-hydrogen peroxide reaction and flow injection after cloud point extraction | en |
heal.type | journalArticle | - |
heal.type.en | Journal article | en |
heal.type.el | Άρθρο Περιοδικού | el |
heal.identifier.secondary | <Go to ISI>://000171044600006 | - |
heal.identifier.secondary | http://pubs.acs.org/doi/pdfplus/10.1021/ac010395k | - |
heal.language | en | - |
heal.access | campus | - |
heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
heal.publicationDate | 2001 | - |
heal.abstract | The catalytic effect of vanadium on the pyronine B-H2O2 system is examined. Enhancement of the catalytic reaction rate along with the efficiency and selectivity against vanadium is achieved in a formic acid environment in the presence of a nonionic surfactant (Triton X-114). Elimination of drastic interference caused by inorganic acids and aqueous matrix along with a 50-fold preconcentration of vanadium are facilitated through cloud point extraction of its neutral complex with 8-quinolinol in an acidic solution. Subsequent flow injection analysis (FIA) with fluorometric detection renders the proposed method ideal for selective and cost-effective determination of as little as 0.020 mug L-1 vanadium in environmental, biological, and food substrates. The preconcentration step can be applied simultaneously to multiple samples, allowing for massive preparation prior to analysis, compensating, thus, for the time-consuming procedure. | en |
heal.journalName | Anal Chem | en |
heal.journalType | peer reviewed | - |
heal.fullTextAvailability | TRUE | - |
Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ |
Files in This Item:
File | Description | Size | Format | |
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Paleologos-2001-Nonaqueous catalytic.pdf | 133.47 kB | Adobe PDF | View/Open Request a copy |
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