Determination of Trace-Level Anions in High-Purity Water Samples by Ion Chromatography with an Automated On-Line Eluent Generation System
✍ Scribed by Yan Liu; Edward Kaiser; Nebojsa Avdalovic
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 68 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0026-265X
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✦ Synopsis
The use of the hydroxide eluents generated on-line by an automated hydroxide eluent generator system was compared with the use of hydroxide eluents prepared off-line in the ion chromatographic determination of trace inorganic and organic anions in high-purity water samples. The use of the hydroxide eluent generation system eliminated the need to prepare eluents off-line and minimized the problems associated with the use of conventional hydroxide eluents in ion chromatography. The results show that the use of high-purity and carbonate-free hydroxide eluents generated on-line yielded minimal baseline shifts during the gradients, improved the analyte retention time reproducibility and method precision, and lowered method detection limits for target analytes.