Simultaneous Determination of Inorganic Anions and Organic Acids in Environmental Samples by Capillary Zone Electrophoresis with Indirect UV Detection

Chen, Zuliang; Tang, Chao; Yu, Jimmy C.

doi:10.1002/(sici)1521-4168(19990701)22:7<379::aid-jhrc379>3.0.co;2-g

Cited by 21 publications

(4 citation statements)

References 25 publications

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“…This method provides the advantages of rapidity, less sample volume, and a good linear response. Simultaneous determination of phosphate ion, organic acids, and other anions in soil, natural water, and plant materials has been achieved with the LODs over a range of 0.48-2.85 mg/L when using various aromatic acids (benzoic, phthalic, trimellitic and pyromellitic acids) as background electrolytes [32].…”

Section: Indirect Uv Detectionmentioning

confidence: 99%

Determination of small phosphorus-containing compounds by capillary electrophoresis

Chang

Tseng

Sreedhar

et al. 2005

Talanta

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Section: Indirect Uv Detectionmentioning

confidence: 99%

Determination of small phosphorus-containing compounds by capillary electrophoresis

Chang

Tseng

Sreedhar

et al. 2005

Talanta

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“…As chromophore and buffer have been employed phtalate [11,15,18,62,67,72,73,91,98,100], benzoate [9,36,81,82,85,86], PDC [5,6,10,14,20,25,38,61,75],…”

Section: Background Electrolytementioning

confidence: 99%

“…Small amounts of organic solvents can also be added to the BGE for improving resolution. Methanol has been added at 5 [33,34,62,122], 10 [108, 109, 117], 20 [18,83], 30 [31], and even 50% [84]. Acetonitrile has been employed at 5 [88], 15 [59], 20 [60], and 30% [98].…”

Section: Background Electrolytementioning

confidence: 99%

“…With uncoated capillaries and revesed polarity a surfactant must be added to decrease, suppress or even reverse the EOF. Cationic surfactants such as CTAB [5,6,10,11,18,23,26,38,40,42,55,72,73,76,78,79,88,134], CTAH [14,20,53,75], TTAB [7, 8, 22, 24, 31, 32, 39, 45, 51, 54, 57-61, 66, 74, 81, 82, 85-87,89], TTAOH [21,28], and MTAB [33,34,62] have traditionally been employed. Surfactants with different nature have also been employed such as HDM [25,50,80,82].…”

Section: Background Electrolytementioning

confidence: 99%

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Capillary electrophoresis for short‐chain organic acids and inorganic anions in different samples

et al. 2003

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This review article is a comprehensive survey of capillary electrophoresis methods developed for the measurement of short-chain organic acids and inorganic anions in a wide variety of matrices, such as food and beverages, environmental, industry, and other applications, as well as clinical applications in body fluids such as urine, plasma or cerebrospinal fluid. Details of sample pretreatment and of electrophoretic conditions have been collected in tables, arranged by the type of matrix. Strategies employed for method development for the analysis of these compounds by capillary electrophoresis in real samples are discussed.

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Simultaneous Determination of Organic Acids in Wine Samples by Capillary Electrophoresis and UV Detection: Optimization with Five Different Background Electrolytes

Ventoso

Peña

Herrero

et al. 2000

J. High Resol. Chromatogr.

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A simple technique is described for the routine capillary electrophoretic determination of organic acids in wine samples. Several aromatic and non‐aromatic compounds, including phthalic acid, benzoic acid, sorbic acid, boric acid, and phosphate, were evaluated as background electrolytes in order to obtain the highest resolution and detection sensivity. Factors that affect capillary electrophoretic separation such as the concentration and pH of the background electrolyte (BGE), the concentration of the electroosmotic flow modifier (EOF), and methanol addition to the electrolyte were investigated systematically. Tartaric, malic, succinic, acetic, and lactic acids were determined simultaneously in approximately six minutes using an electrolyte containing 3 mM phosphate and 0.5 mM myristyltrimethylammonium bromide (MTAB) as electroosmotic flow modifier at pH 6.5. This method is quantitative, with recoveries in the 90–102% range and linear up to 50 mg L–1. The precision is better than 1% and the procedure shows the appropriate sensibility, with detection limits between 0.015 and 0.054 mg L–1. The proposed method was successfully employed for the determination of organic acids in wine samples by direct sample injection after appropriate dilution and filtration.

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Simultaneous Determination of Inorganic Anions and Organic Acids in Environmental Samples by Capillary Zone Electrophoresis with Indirect UV Detection

Cited by 21 publications

References 25 publications

Determination of small phosphorus-containing compounds by capillary electrophoresis

Determination of small phosphorus-containing compounds by capillary electrophoresis

Capillary electrophoresis for short‐chain organic acids and inorganic anions in different samples

Simultaneous Determination of Organic Acids in Wine Samples by Capillary Electrophoresis and UV Detection: Optimization with Five Different Background Electrolytes

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