Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration : A comparison
In: Analytica chimica acta, Jg. 599 (2007), Heft 2, S. 256-263
academicJournal
- print, 27 ref
Zugriff:
The mass fraction of potassium hydrogen phthalate (KHP) from a specific batch was certified as an acidimetric standard. Two different analytical methods on a metrological level were used to carry out certification analysis: precision constant current coulometric and volumetric titration with NaOH. It could be shown that with a commercial automatic titration system in combination with a reliable software for the end-point detection it is possible to produce equivalent results with the same accuracy in comparison to a definite method handled by a fundamental apparatus for traceable precision coulometry. Prerequisite for titrations are that a high number of single measurement are applied which are calibrated with a high precision certified reference material.
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Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration : A comparison
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Autor/in / Beteiligte Person: | RECKNAGEL, Sebastian ; BREITENBACH, Martin ; PAUTZ, Joachim ; LÜCK, Detlef |
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Zeitschrift: | Analytica chimica acta, Jg. 599 (2007), Heft 2, S. 256-263 |
Veröffentlichung: | Amsterdam: Elsevier, 2007 |
Medientyp: | academicJournal |
Umfang: | print, 27 ref |
ISSN: | 0003-2670 (print) |
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