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Critical approach to flow injection gradient titration as a calibration method
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Critical approach to flow injection gradient titration as a calibration method
Bibliographic description
| title: | Critical approach to flow injection gradient titration as a calibration method |
| author: | Wieczorek Marcin  , Kozak Joanna , Kościelniak Paweł , Knihnicki Paweł , Pieprzyca Ewelina |
| journal title: | Talanta |
| title of volume: | Selected Papers presented at the 17th ICFIA, Krakow, Poland (2011) |
| volume: | 96 |
| date of publication : | 2012 |
| pages: | 34-38 |
| ISSN: |
0039-9140 |
| eISSN: |
1873-3573 |
| DOI: | |
| language: | English |
| journal language: | English |
| abstract in English: | An attempt was made to demonstrate that flow injection gradient titration should not be considered as classical titration but rather as the indirect calibration method. This was shown experimentally by exploiting indirect spectrophotometric determination of chlorite ions in the presence of iron(II) in an acid environment with measurement of absorbance for the coloured Fe(II)/o-phenanthroline complex at 512 nm. In such an analytical system, the peaks of a cut-off profile were obtained with two characteristic points corresponding to equivalent amounts of analyte and reagent, and peak widths were used as the analytical signal. The only difference between the approach presented and the classical flow injection titration procedure was not fundamental but of a technical nature and consisted in the fact that a sample loop of relatively great volume instead of a mixing chamber was installed into the flow injection system. The analytical performance of the developed calibration procedure is also presented and discussed |
| keywords in English: | flow injection analysis, indirect calibration method, FIA gradient titration |
| departmental parameterization: | 40 |
| affiliation: | Wydział Chemii : Zakład Chemii Analitycznej |
| type: | journal article |
| subtype: | academic paper |
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Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
