Determination of inorganic oxyhalides in drinking water by on-line coupled capillary isotachophoresis- capillary zone electrophoresis

• Authors: František Kvasnička , Václav Janda , Daniela Rousová , Jiří Manda , Lubica Kollerová
• Languages of publication: EN

Abstracts

EN

Some oxyhalides can be found in drinking waters as inorganic disinfection byproducts. An on-line coupled capillary isotachophoresis-capillary zone electrophoresis (CITP-CZE) method was developed for the analysis of chlorate, chlorite and bromate in water. The optimized CITP-CZE electrolyte system consisted of the following: 10 mM-HCl+20 mM-β-Alanine (leading electrolyte), 5 mM-succinic acid (terminating electrolyte), and 10 mM-succinic acid +5 mM-β-Alanine +0.1% HPMC (carrier electrolyte). A clear separation of oxyhalides from other components of drinking water was achieved within 25 min. Method characteristics, i.e., linearity (0–200 ng/mL), accuracy (88–110%), intra-assay (3–5%), quantification limit (5–15 ng/mL), and detection limit (2–5 ng/mL), were determined. Minimum labor requirements, sufficient sensitivity and low running cost are important attributes of this method. It was found that the developed method is useful for the routine analysis of oxyhalides in water.

Keywords

EN

Oxyhalides; drinking water; on-line coupled capillary isotachophoresis-zone electrophoresis

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2005
• Volume: 3
• Issue: 1
• Pages: 137-145

Dates

published

1 - 3 - 2005

online

1 - 3 - 2005

Contributors

author

František Kvasnička

• Institute of Chemical Technology, Technická 5, CZ-166 28, Prague 6, Czech Republic

author

Václav Janda

• Institute of Chemical Technology, Technická 5, CZ-166 28, Prague 6, Czech Republic

author

Daniela Rousová

• Institute of Chemical Technology, Technická 5, CZ-166 28, Prague 6, Czech Republic

author

Jiří Manda

• Institute of Chemical Technology, Technická 5, CZ-166 28, Prague 6, Czech Republic

author

Lubica Kollerová

• Institute of Chemical Technology, Technická 5, CZ-166 28, Prague 6, Czech Republic

References

• [1] Swiss Analytical Handbook for Food, Chapter: Drinking water, Switzerland, 1986.
• [2] Guidelines for Drinking Water Quality, Vol. 1, Recommendations WHO, Geneva, 1993.
• [3] Ministry of Health of The Czech Republic: “Directive which sets requirements for drinking water quality, extent and frequency of its monitoring”, Register of Directives of The Czech Republic, item No. 376/2000 Sb., (2000).
• [4] ISO 15061:2001, Water quality-Determination of dissolved bromate-Method by liquid chromatography of ions, 2001, pp. 1–21.
• [5] U.S. EPA, Method 317.0: (2000), Determination of inorganic oxyhalide disinfection by-products in drinking water using ion chromatography with the addition of a postcolumn reagent for trace bromate analysis.
• [6] H. Weinberg: “Pre-concentration techniques for bromate analysis in ozonated waters”, J. Chromatogr. A, Vol. 671, (1994), pp. 141–149. http://dx.doi.org/10.1016/0021-9673(94)80232-7[Crossref]
• [7] D. Kaniansky, I. Zelensky, A. Hybenova and F. Onuska: “Determination of chloride, nitrate, sulfate, nitrite, fluoride, and phosphate by online coupled capillary isotachophoresis-capillary zone electrophoresis with conductivity detection”, Anal. Chem., Vol. 66, (1994), pp. 4258–4264. http://dx.doi.org/10.1021/ac00095a022[Crossref]
• [8] F. Kvasnička, M. Jaroš and B. Gaš: “New configuration in capillary isotachophoresis capillary zone electrophoresis coupling”, J. Chromatogr. A, Vol. 916, (2001), pp. 131–142. http://dx.doi.org/10.1016/S0021-9673(01)00616-1[Crossref]

Identifiers

DOI

10.2478/BF02476244