Determination of short chain aliphatic acids in silage effluents by ion exclusion chromatography

Fischer, Klaus; Corsten, C.; Leidmann, P.; Bieniek, D.; Kettrup, A.

doi:10.1007/bf02275725

Cited by 17 publications

(7 citation statements)

References 14 publications

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“…Diluted strong mineral acids have often been used as the eluent for the separation of carboxylic acids [10,11]. In recent years, the use of weak organic acids as the eluent has also been reported [12,16]. To select an eluent suitable for the separation of carboxylic acids in biological samples, both mineral acid (HCl) and weak organic acids (PFBA or HSA) were tested at various concentrations.…”

Section: Resultsmentioning

confidence: 99%

“…Chem. 16,1997 N. Xu et al sub mg/L detection limit and less than 1% RSDs (n ϭ 6) for each carboxylic acid tested. Another advantage of IEC is its freedom from interference caused by the matrix anions.…”

Section: Discussionmentioning

confidence: 97%

“…Chem. 16,1997 N. Xu et al attributed to the extra hydroxyl group, because this enhanced the acid polarity and weakened the attraction force between the nonpolar resin surface and the acid analyte. The increased retention of butyric acid on the other hand was caused by its relatively large alkyl chain, which caused a hydrophobic adsorption effect.…”

Section: Selection Of Eluentsmentioning

confidence: 99%

“…Chem. 16,1997 N. Xu et al the chromatogram of carboxylic acids. Each anion was at a concentration level of 100, 500, and 1,000 mg/L, respectively.…”

Section: Sample Matrix Effectmentioning

confidence: 99%

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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: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 97%

Section: Selection Of Eluentsmentioning

confidence: 99%

“…Chem. 16,1997 N. Xu et al the chromatogram of carboxylic acids. Each anion was at a concentration level of 100, 500, and 1,000 mg/L, respectively.…”

Section: Sample Matrix Effectmentioning

confidence: 99%

See 2 more Smart Citations

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

View full text Add to dashboard Cite

show abstract

“…Such methods include ion exchange (3)(4)(5)13) and ion exclusion (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) separations. Such methods include ion exchange (3)(4)(5)13) and ion exclusion (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) separations.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of an Ion Exclusion/Direct Conductivity Method for Quantitating Acetic and Lactic Acids in Pharma-Ceutical LVP Base Formulations

Warnock

Nair

Sadain

et al. 2002

Journal of Liquid Chromatography & Related Technologies

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Organic acids (e.g., acetic, lactic and gluconic acid) are common components in Large Volume Parenteral (LVP) base solutions. The characterization of such solution products is necessary for production control and product release. A chromatographic method, which couples separation by anion exclusion with direct conductivity detection, has been developed for this purpose. The evaluation of this method, carried out in a manner consistent with United States Pharmacopeia (USP) and International Council for Harmonization (ICH) guidelines, is summarized in this manuscript. The method meets the acceptance ORDER REPRINTS criteria for in-process and=or product release testing with respect to accuracy, linearity, range, precision, and specificity.

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Effluent analysis in analytical chemistry: an overview

Rojas

Ojeda

2005

Anal Bioanal Chem

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Determination of short chain aliphatic acids in silage effluents by ion exclusion chromatography

Cited by 17 publications

References 14 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

Evaluation of an Ion Exclusion/Direct Conductivity Method for Quantitating Acetic and Lactic Acids in Pharma-Ceutical LVP Base Formulations

Effluent analysis in analytical chemistry: an overview

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