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Ion chromatographic separation of some aminopolycarboxylic acids and inorganic anions

Ionenchromatographische Trennung einiger Aminopolycarbonsäuren und anorganischer Anionen

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Summary

An ion Chromatographie method of separating polyaminocarboxylic acids is described. A mixture of EDTA, NTA, HEIDA, and IDA is separated. A small amount of phosphate can be separated from EDTA. The sodium salts of Group VIB anions are separated. A linear relationship between the retention time and their atomic number is obtained due to the difference in their ionic electron density. Tellurite and tellurate are also separated.

Zusammenfassung

Eine ionenchromatographische Methode zur Trennung von Aminopolycarbonsäuren wurde beschrieben. Das Gemisch aus EDTA, NTA, HEIDA und IDA wurde getrennt. Geringe Mengen Phosphat lassen sich von EDTA trennen. Die Natriumsalze der Anionengruppe VI B wurden getrennt. Zwischen der Retentionszeit und ihrer Atomnummer ergab sich eine geradlinige Beziehung als Folge der Differenz der Elektronendichte. Tellurit und Tellurat wurden ebenfalls getrennt.

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Chen, S.G., Cheng, K.L. & Vogt, C.R. Ion chromatographic separation of some aminopolycarboxylic acids and inorganic anions. Mikrochim Acta 79, 473–481 (1983). https://doi.org/10.1007/BF01204831

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  • DOI: https://doi.org/10.1007/BF01204831

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