Application of a Picrolonate Ion-Selective Electrode to the Assay of Calcium and Piperazine in Pharmaceuticals and Serum
| dc.contributor.author | Veltsistas, P. G. | en |
| dc.contributor.author | Prodromidis, M. I. | en |
| dc.contributor.author | Karayannis, M. I. | en |
| dc.date.accessioned | 2015-11-24T16:52:30Z | |
| dc.date.available | 2015-11-24T16:52:30Z | |
| dc.identifier.issn | 0003-2654 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/9894 | |
| dc.rights | Default Licence | - |
| dc.subject | picrolonic acid | en |
| dc.subject | picrolonate liquid ion-selective electrode | en |
| dc.subject | calcium and piperazine determination | en |
| dc.subject | pharmaceuticals | en |
| dc.subject | serum | en |
| dc.title | Application of a Picrolonate Ion-Selective Electrode to the Assay of Calcium and Piperazine in Pharmaceuticals and Serum | en |
| heal.abstract | The construction and some analytical applications of a liquid picrolonate (Picrl(-)) ion-selective electrode based on the tris(phenanthrolinato)iron(II) (ferroin) picrolonate salt, dissolved in 2-nitrotoluene, are described. The liquid membrane electrode exhibits a rapid and almost Nernstian response to picrolonate anions in the concentration range from 5 X 10(-2) to 5 X 10(-2) mol l(-1). The response is virtually unaffected by pH changes ih the range 3-10. Major interferents are picrates, 4-nitrophenolates, 3,5-dinitrosalicylates and 2,4-dinitrophenolates. In analytical applications direct potentiomctric methods for the determination of picrolonates and indirect methods for the determination of calcium and piperazine are described. calcium in the ranges 4-24 and 50-90 mg l(-1), under specified experimental conditions,can be determined with mean relative errors of 1.1 and 1.4%, respectively. The method is applicable to soluble samples, pharmaceuticals and industrial and real human serum. Piperazine in the ranges 1-10 and 13-20 mg can be determined with a mean relative error of 1.2% in soluble salts and pharmaceutical formulations, respectively. An accuracy of better than 1.5% and a reproducibility (relative standard deviation) of 0.1.% mere achieved in the analysis of pharmaceutical products. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1039/AN9941901613 | - |
| heal.identifier.secondary | <Go to ISI>://A1994NZ70100033 | - |
| heal.identifier.secondary | http://pubs.rsc.org/en/Content/ArticleLanding/1994/AN/an9941901613 | - |
| heal.journalName | Analyst | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1994 | - |
| heal.publisher | Royal Society of Chemistry | 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 |
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