Analysis of disparate levels of anions of relevance to corrosion processes

The application of an analysis approach which combines matrix matching of electrolyte with sample with direct UV detection for anion analysis of low levels (ppm) of some anions in the presence of large levels (on the order of 1 M) of chloride or sulfate is reported. By replacing the standard chromat...

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Bibliographic Details
Published inJournal of Chromatography A Vol. 739; no. 1; pp. 191 - 198
Main Authors Kelly, R.G., Brossia, C.S., Cooper, K.R., Krol, J.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 19.07.1996
Subjects
Buffer composition
Corrosion
Electroosmotic flow modifier
Inorganic anions
Corrosion
Buffer composition
Electroosmotic flow modifier
Inorganic anions
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Summary:The application of an analysis approach which combines matrix matching of electrolyte with sample with direct UV detection for anion analysis of low levels (ppm) of some anions in the presence of large levels (on the order of 1 M) of chloride or sulfate is reported. By replacing the standard chromate electrolyte with one based on the dominant anion (e.g., NaCl), a matrix match for the anion is achieved. The development of the method and the effects of the concentration of the electroosmotic flow modifier on the selectivity of the analysis are described. In addition, the application of the method to several corrosion studies is presented.
ISSN:0021-9673
DOI:10.1016/0021-9673(96)00223-3