Determination of Trace-Level Anions in High-Purity Water Samples by Ion Chromatography with an Automated On-Line Eluent Generation System

Liu, Yan; Kaiser, Edward; Avdalović, Nebojša

doi:10.1006/mchj.1999.1699

Cited by 17 publications

(5 citation statements)

References 9 publications

(10 reference statements)

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“…18A). Our studies show that the use of the electrolytic KOH eluent generator improves the ion chromatographic determination of anions at trace concentrations by increasing retention time reproducibility and method precision, and by lowering detection limits for target analytes [58,59].…”

Section: Applications Of Electrolytic Devices In Ion Chromatographymentioning

confidence: 95%

Recent developments in electrolytic devices for ion chromatography

Liu¹,

Srinivasan²,

Pohl³

et al. 2004

Journal of Biochemical and Biophysical Methods

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Section: Applications Of Electrolytic Devices In Ion Chromatographymentioning

confidence: 95%

Recent developments in electrolytic devices for ion chromatography

Liu¹,

Srinivasan²,

Pohl³

et al. 2004

Journal of Biochemical and Biophysical Methods

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“…Automated eluent generation has been shown to produce high purity eluents with minimal baseline shift during gradient separations and also to improve the reproducibility of gradient methods. 5 Suppressor devices, which convert the eluent ion to its much less conductive weak acid (or weak base) form and enhance the conductance of the analyte ion pair, have evolved from packed bed columns that required frequent, off-line regeneration to continuously regenerated devices which electrolytically produce the acid or base required for suppression. These devices further increase the level of automation of IC systems, in addition to providing minimal band broadening and low background noise.…”

Section: Advances In Instrumentationmentioning

confidence: 99%

Advances in the determination of inorganic ions in potable waters by ion chromatography

Jackson¹,

Chassaniol²

2001

J. Environ. Monitor.

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Ion chromatography (IC) is now a well-established methodology for the analysis of ionic species. The technique is applicable to the determination of a wide range of solutes in many sample types, although the determination of inorganic ions in potable waters continues to be the most widely used application of ion chromatography. Many standardization and regulatory bodies, such as the American Society for Testing and Materials (ASTM), International Organization for Standardization (ISO), and US Environmental Protection Agency (EPA), have approved methods of analysis based upon IC, most of which have been published within the last decade. Recent developments in the field of IC, such as the use of higher capacity columns, larger loop injections, more complex sample preparation and detection schemes, have been incorporated into these new approved methods. These advances allow the determination of environmentally significant contaminants, such as common inorganic anions, bromate, perchlorate and chromate, at trace levels in potable waters using ion chromatography.

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“…Analytical techniques reported for the determination of trace levels of inorganic anions in different matrixes include ion chromatography (IC) (Y. Liu, Kaiser, and Avdalovic 1999;Curran and Palmer 2001;Santoyo et al 2002;Peter and Chassaniol 2002;Lu et al 2002;Haddad 2004;Michalski 2006) and capillary electrophoresis (CE) (Jandik and Bonn 1993;Sádecká and Polonský 1999;Kaniansky et al 1999;Pacáková et al 2003;Galli et al 2003;Fukushi et al 1999). Several ion chromatography methods (Vanderford 1992;Dionex Corporation 1998;Kaiser, Rohrer, and Watanabe 1999;Wang et al 2002) have determined trace anions in hydrofluoric acid using a multidimensional suppressed approach that involves preconcentration of anions and separation from the matrix.…”

Section: Introductionmentioning

confidence: 98%

Industrial Application of Ion Chromatography to the Quality Control of Fluorinated Inorganic Acids

2014

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Analytical chemistry offers useful tools to solve problems in industrial laboratories caused by traditional methods of analysis. A simple ion chromatographic method has been developed to determine chloride, bromide, nitrate, and sulfate in hexafluorosilicic acid and tetrafluoroboric acid. These materials contain high levels of fluorinated species at pH values lower than 1.0, which represent a challenging sample. Currently, these matrixes are analyzed by chemical methods with associated interferences. Optimization of the ion chromatography method was performed using industrial samples due to the absence of reference materials. In order to obtain the best chromatographic resolution, the sample dilution, flow rate, and eluent concentration were studied in an isocratic mode. The method was suitable for the separation of the anions in less than 30 minutes, without sample treatment other than dilution. Good linearity was obtained with correlation coefficients between 0.9951 and 0.9998. Limits of quantification were between 0.21 and 0.39 mg/L for chloride, bromide, nitrate, and sulfate in hexafluorosilicic acid and tetrafluoroboric acid, and the inter-and intra-day relative standard deviations were less than 15%.

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Determination of Trace-Level Anions in High-Purity Water Samples by Ion Chromatography with an Automated On-Line Eluent Generation System

Cited by 17 publications

References 9 publications

Recent developments in electrolytic devices for ion chromatography

Recent developments in electrolytic devices for ion chromatography

Advances in the determination of inorganic ions in potable waters by ion chromatography

Industrial Application of Ion Chromatography to the Quality Control of Fluorinated Inorganic Acids

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