Serial potentiometric and conductometric detection in fast non-suppressed ion chromatography applied to the analysis of filter collected airborne particulates
Non-suppressed ion chromatography (NSIC) has been optimized to permit the determination of chloride, nitrate and sulfate in the low mg/l concentration range within 3 min. Using conductometric detection the extraneous (positive) injection peak was found to adversely affect the early eluting chloride...
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| Veröffentlicht in: | Analytical and bioanalytical chemistry 1995-09, Vol.353 (2), p.123-127 |
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| container_title | Analytical and bioanalytical chemistry |
| container_volume | 353 |
| creator | FRENZEL, W RAUTERBERG-WULFF, A SCHEPERS, D |
| description | Non-suppressed ion chromatography (NSIC) has been optimized to permit the determination of chloride, nitrate and sulfate in the low mg/l concentration range within 3 min. Using conductometric detection the extraneous (positive) injection peak was found to adversely affect the early eluting chloride signal when samples with high amounts of total cations are analyzed. The serial arrangement of a downstream potentiometric detector with a chloride ion selective electrode, which does not respond to other alterations of the composition of the eluent than the change in chloride concentrations, is shown to be suitable for interference-free, sensitive and reliable chloride evaluation. Application of the proposed system to the determination of chloride in extracts of filter collected airborne particulates revealed (for those samples that could be evaluated by both detection methods) high precision and no systematic deviations between conductometric and potentiometric detection. |
| doi_str_mv | 10.1007/BF00322944 |
| format | Article |
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| issn | 0937-0633 1432-1130 1618-2650 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | Analytical chemistry Chemistry Chromatographic methods and physical methods associated with chromatography Exact sciences and technology Other chromatographic methods |
| title | Serial potentiometric and conductometric detection in fast non-suppressed ion chromatography applied to the analysis of filter collected airborne particulates |
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