On-line sorption preconcentration of metals based on mixed micelle cloud point extraction prior to their determination with micellar chemiluminescence - Application to the determination of chromium at ng 1(-1) levels
| dc.contributor.author | Paleologos, E. K. | en |
| dc.contributor.author | Vlessidis, A. G. | en |
| dc.contributor.author | Karayannis, M. I. | en |
| dc.contributor.author | Evmiridis, N. P. | en |
| dc.date.accessioned | 2015-11-24T16:43:24Z | |
| dc.date.available | 2015-11-24T16:43:24Z | |
| dc.identifier.issn | 0003-2670 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/8695 | |
| dc.rights | Default Licence | - |
| dc.subject | on-line | en |
| dc.subject | cloud point extraction | en |
| dc.subject | micellar-enhanced chemiluminescence detection | en |
| dc.subject | fia manifold | en |
| dc.subject | flow injection | en |
| dc.subject | chromium(iii) | en |
| dc.subject | luminol | en |
| dc.subject | atomic-absorption spectrometry | en |
| dc.subject | flow-injection analysis | en |
| dc.subject | chemi-luminescence | en |
| dc.subject | separation approach | en |
| dc.subject | ion chromatography | en |
| dc.subject | methodology | en |
| dc.subject | pyrogallol | en |
| dc.subject | oxidation | en |
| dc.subject | periodate | en |
| dc.subject | systems | en |
| dc.title | On-line sorption preconcentration of metals based on mixed micelle cloud point extraction prior to their determination with micellar chemiluminescence - Application to the determination of chromium at ng 1(-1) levels | en |
| heal.abstract | The on-line incorporation of cloud point extraction (CPE) to flow injection analysis (FIA) is modified to extract and preconcentrate metal species rapidly, avoiding the formation of hydrophobic complexes, using a mixed micellar medium. Coupling the procedure with chemiluminescence (CL) detection based on the catalytic activity of metal species on the luminol-hydrogen peroxide reaction and enhancing the signal with the presence of a micellar carrier containing bromide ions produces a powerful tool for the preconcentration and determination of metal species at ng l(-1) levels. As an analytical demonstration ultratrace concentrations of chromium were conveniently detected and quantified in samples with a complex matrix such as seawater and wastewater. The figures of merit for the determination of chromium were: 0.9-1.6% R.S.D. (n = 5) with detection and quantification limits 0.5 and 2.0 ng l(-1), respectively. The calibration graph was rectilinear from 2 to 200 ng l(-1) (r = 0.9996, n = 6). Several other metal ions were determined in ideal situations, with analogous results. (C) 2002 Elsevier Science B.V. All rights reserved. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.1016/S0003-2670(02)01429-0 | - |
| heal.identifier.secondary | <Go to ISI>://000180437400005 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0003267002014290/1-s2.0-S0003267002014290-main.pdf?_tid=ab93c5d0-356a-11e3-8202-00000aab0f6b&acdnat=1381821981_ac43df299ea02602da44a64657f1c9df | - |
| heal.journalName | Analytica Chimica Acta | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2003 | - |
| heal.publisher | Elsevier Masson | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
Files
License bundle
1 - 1 of 1
Loading...
- Name:
- license.txt
- Size:
- 1.74 KB
- Format:
- Item-specific license agreed upon to submission
- Description: