Determination of hydrogen peroxide by using a flow injection system with immobilized peroxidase and long pathlength capillary spectrophotometry
| dc.contributor.author | Pappas, A. C. | en |
| dc.contributor.author | Stalikas, C. D. | en |
| dc.contributor.author | Fiamegos, Y. C. | en |
| dc.contributor.author | Karayannis, M. I. | en |
| dc.date.accessioned | 2015-11-24T16:55:37Z | |
| dc.date.available | 2015-11-24T16:55:37Z | |
| dc.identifier.issn | 0003-2670 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/10335 | |
| dc.rights | Default Licence | - |
| dc.subject | hydrogen peroxide | en |
| dc.subject | liquid waveguide capillary cell | en |
| dc.subject | immobilized peroxidase | en |
| dc.subject | flow injection analysis | en |
| dc.subject | amperometric determination | en |
| dc.subject | fluorometric-determination | en |
| dc.subject | horseradish-peroxidase | en |
| dc.subject | biosensor | en |
| dc.subject | water | en |
| dc.subject | chemiluminescence | en |
| dc.subject | electrode | en |
| dc.subject | reagent | en |
| dc.subject | samples | en |
| dc.subject | column | en |
| dc.title | Determination of hydrogen peroxide by using a flow injection system with immobilized peroxidase and long pathlength capillary spectrophotometry | en |
| heal.abstract | The development of a highly sensitive method for the determination of nanomolar concentrations of hydrogen peroxide in the liquid phase is described. This paper demonstrates for the first time a flow injection analysis (FIA) system with immobilized enzyme reactor combined with a total internal reflective cell (a liquid waveguide capillary cell (LWCC)) and spectrophotometric detection, for the development of an improved procedure for the determination of hydrogen peroxide. Moreover, the newly synthesized 4-aminopyrazolone derivative, 4-amino-5-(p-aminophenyl)-1-methyl-2-phenyl-pyrazol-3-one (DAP), is used as a color coupler in its oxidative condensation with the sodium salt of N-ethyl-N-sulphopropylaniline sodium salt (ALPS) which acts as a hydrogen donor. Immobilization of peroxidase is achieved by coupling the periodate-treated enzyme to aminopropyl controlled-pore glass (CPG) beads. The determination of hydrogen peroxide is carried out in a 0.1 M phosphate buffer and the product is monitored at 590 nm with a charge-coupled device (CCD) detector equipped with fiber optics in a fully computerized system. The interference of different species, mainly ionic, was investigated. The method permits detection down to 4 nmol l(-1) hydrogen peroxide (signal-to-noise ratio = 3). A linear calibration graph was obtained over the range 20-700 nmol l(-1). The relative standard deviation (R.S.D.) at 300 nmol l(-1) H,02 is 1.7% (n = 7), The method was successfully applied for the determination of hydrogen peroxide in samples from a vat-cleaning process. (C) 2002 Elsevier Science B.V. All rights reserved. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1016/S0003-2670(01)01600-2 | - |
| heal.identifier.secondary | <Go to ISI>://000174586200015 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0003267001016002/1-s2.0-S0003267001016002-main.pdf?_tid=96d71ead45cd0ccc024441573e9df7a6&acdnat=1333040884_dafed7a350b247e1456128c4910c984a | - |
| heal.journalName | Analytica Chimica Acta | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2002 | - |
| heal.publisher | Elsevier | 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 |
Αρχεία
Φάκελος/Πακέτο αδειών
1 - 1 of 1
Φόρτωση...
- Ονομα:
- license.txt
- Μέγεθος:
- 1.74 KB
- Μορφότυπο:
- Item-specific license agreed upon to submission
- Περιγραφή: