Use of isotachophoresis as a reference method for the simultaneous determination of barium and strontium

R.G. Trieling, J.C. Reijenga, H.D. Jonker

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Abstract

When using X-ray fluorescence spectrometry for the determination of alkali and alkaline earth metals in a silica matrix, frequent recalibration with reference samples is necessary. Determination of metals in these reference samples is carried out using classical analysis. The latter was not possible with barium and strontium in the presence of each other owing to mutual interference. Isotachophoresis, using a 0.02 mol/1 potassium—citrate leading electrolyte of pH 5.0 and magnesium chloride as a terminator proved suitable. At concentration ratios in the range 1:10 to 10:1 the accuracy and precision were well within the 1% requirement
Original languageEnglish
Pages (from-to)475-479
JournalJournal of Chromatography, A
Volume545
Issue number2
DOIs
Publication statusPublished - 1991

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Alkaline Earth Metals
Isotachophoresis
X-Ray Emission Spectrometry
Strontium
Magnesium Chloride
Alkalies
Barium
Silicon Dioxide
Electrolytes
Metals

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Trieling, R.G. ; Reijenga, J.C. ; Jonker, H.D. / Use of isotachophoresis as a reference method for the simultaneous determination of barium and strontium. In: Journal of Chromatography, A. 1991 ; Vol. 545, No. 2. pp. 475-479.
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Use of isotachophoresis as a reference method for the simultaneous determination of barium and strontium. / Trieling, R.G.; Reijenga, J.C.; Jonker, H.D.

In: Journal of Chromatography, A, Vol. 545, No. 2, 1991, p. 475-479.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Use of isotachophoresis as a reference method for the simultaneous determination of barium and strontium

AU - Trieling, R.G.

AU - Reijenga, J.C.

AU - Jonker, H.D.

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DO - 10.1016/S0021-9673%2801%2988742-2

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