Publication detail

Determination of Phosphates and Polyphosphates Using Capillary Isotachophoresis

Authors: Valentová Tereza | Bartoš Martin | Mikysek Tomáš

Year: 2012

Type of publication: článek ve sborníku

Name of source: Sensing in Electroanalysis Vol. 7

Publisher name: Univerzita Pardubice

Place: Pardubice

Page from-to: 423-432

Titles:

Language	Name	Abstract	Keywords
cze	Stanovení fosforečnanů a polyfosforečnanů kapilární izotachoforézou	Článek popisuje izotachoforetické stanovení fosforečnanů a polyfosforečnanů v různých vzorcích. Podmínky analýzy: vedoucí elektrolyt: 10 mM HCl + β-alanin + 0,1% hydroxyethylcelulosa (pH 3,6); koncový elektrolyt: 10 mM kyselina citronová. Linearita 0–200 mg/l P2O5, detekční limit cca. 0,3 mg/l P2O5, doba analýzy 15 až 30 minut.	kapilární izotachoforéza, fosforečnany, polyfosforečnany, kondenzované fosforečnany, stanovení
eng	Determination of Phosphates and Polyphosphates Using Capillary Isotachophoresis	In this article, phosphate, di- and triphosphates are the analytes determined in commercially marketed samples with the aid of capillary isotachophoresis. After method development, the optimal electrolyte system comprised 10 mM HCl + β-alanine + 0.1% hydroxy-ethylcellulose (pH 3.6) as the leading electrolyte and 10 mM citric acid as the terminating electrolyte. The calibration / detection characteristics are as follows: linearity over the concentration range of 0–200 mg.l-1 P2O5, limit of detection ca. 0.3 mg.l-1 P2O5, limit of quantification of ca. 1 mg.l-1 P2O5. The time of analysis was from 15 to 30 minutes. Furthermore, relatively simple procedure, low operational costs, and sufficient sensitivity are further positive attributes of the method tested in analyses of selected real samples.	Capillary isotachophoresis, Phosphate, Polyphosphate, Condensed phosphate, Determination

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