Peak enhancement of carboxylic acids in ion-exclusion chromatography with a cation-exchange hollow-fibre suppressor using neutral and alkaline enhancers

Murayama, Tadashi; Kubota, Tomoko; Hanaoka, Yuzuru; Rokushika, Souji; Kihara, Kazuko; Hatano, Hiroyuki

doi:10.1016/s0021-9673(01)82206-8

Cited by 15 publications

(3 citation statements)

References 15 publications

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“…Microcosm samples for bioremediation studies were made from mineral medium that contained a large quantity of inorganic ions. For carboxylic acid analysis with ion-exchange chromatography, the inorganic anions create a major interference because they coelute at the same retention volume as the organic acids [18]. Because IEC separation performance is based on ion exclusion, the completely dissociated anions are excluded from entering the resin pores by Donnan repulsion and elute together with the column void volume.…”

Section: Sample Matrix Effectmentioning

confidence: 99%

Ion‐exclusion chromatographic determination of carboxylic acids used to support the microbially mediated reductive dechlorination of tetrachloroethene

Vandegrift²,

Fine³

et al. 1997

Enviro Toxic and Chemistry

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Abstract-An analytical method was developed for the determination of lactic acid, formic acid, acetic acid, propionic acid, and butyric acid in environmental microcosm samples using ion-exclusion chromatography. The chromatographic behavior of various eluents was studied to determine the optimum analytical conditions for eluent concentration and flow rate. Matrix effects caused by inorganic anions including carbonate were investigated. Methods for carbonate removal were also examined. Sub mg/L detection limits and small analytical variations (less than 1%) were obtained with all five acids. Calibration curves with regression coefficients (r 2 ) of 0.998 to 1.000 were obtained for acid concentrations ranging from 2.00 to 200.00 mg/L. The total run time for five carboxylic acids was less than 20 min with a relatively small sample volume requirement (ϳ0.5 ml). The recoveries of the acids from microcosm samples were between 80 to 102%.

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Section: Sample Matrix Effectmentioning

confidence: 99%

Ion‐exclusion chromatographic determination of carboxylic acids used to support the microbially mediated reductive dechlorination of tetrachloroethene

Vandegrift²,

Fine³

et al. 1997

Enviro Toxic and Chemistry

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show abstract

“…Two authors, Murayama (79) and Haginaka et al (80) described a cationexchange, hollow-fiber suppressor system to enhance the detection of carboxylic acids after separation by IEC. Neutral salt or alkaline solutions were employed as enhancers which were pumped on the outside of the suppressor tube.…”

Section: Ion-exclusion Chromatography Of Organic Acidsmentioning

confidence: 99%

Chemically modified polymeric resins for separation of cations, organic acids, and small polar moleculea by high performance liquid chromatography

Morris

1993

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This dissertation starts with a general introduction containing a literature review. This is followed by two research papers which have been published in analytical chemistry journals and a third which will soon be submitted for publication. Permission from the publisher extending reproduction and distribution rights is acknowledged. Each paper is preceded by a summary and followed by conclusions. The three papers are followed by a general conclusions section. References cited in the general introduction are compiled in the literature-cited section following general conclusions. Each paper appears in its entirety including references and figures. Figures are contained in the text of the paper at the appropriate location. References cited within each paper are listed after the conclusions of each paper. High Performance Liquid Chromatography High performance liquid chromatography (HPLC) has grown tremendously since its inception in the early 1970's. Although gas chromatographs were available in the 1960's, there was an obvious need for an instrumental technique that could separate water soluble, thermally labile, non-volatile compounds with speed, precision, and high resolution. The development of HPLC was stimulated by the discovery of DNA. A reliable technique was needed to separate and quantify small amounts of nucleotides and nucleosides from the hydrolysates of DNA and RNA (1). Since its early beginnings, HPLC has expanded to include more specific modes of operation such as adsorption, ion-exchange, normal-phase, reversed-phase, size-exclusion, ion-exclusion,

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“…Two authors, Murayama (79) and Haginaka et al (80) described a cationexchange, hollow-fiber suppressor system to enhance the detection of carboxylic acids after separation by lEC. Neutral salt or alkaline solutions were employed as enhancers which were pumped on the outside of the suppressor tube.…”

Section: Ion-exclusion Chromatography Of Organic Acidsmentioning

confidence: 99%

Chemically modified polymeric resins for separation of cations, organic acids, and small polar molecules by high performance liquid chromatography

Morris

View full text Add to dashboard Cite

Peak enhancement of carboxylic acids in ion-exclusion chromatography with a cation-exchange hollow-fibre suppressor using neutral and alkaline enhancers

Cited by 15 publications

References 15 publications

Ion‐exclusion chromatographic determination of carboxylic acids used to support the microbially mediated reductive dechlorination of tetrachloroethene

Ion‐exclusion chromatographic determination of carboxylic acids used to support the microbially mediated reductive dechlorination of tetrachloroethene

Chemically modified polymeric resins for separation of cations, organic acids, and small polar moleculea by high performance liquid chromatography

Chemically modified polymeric resins for separation of cations, organic acids, and small polar molecules by high performance liquid chromatography

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