Capillary electrophoresis and capillary electrochromatography of organic pollutants

Sovocool, G. Wayne; Brumley, William C.; Donnelly, J.R.

doi:10.1002/(sici)1522-2683(19991001)20:15/16<3297::aid-elps3297>3.0.co;2-9

Cited by 32 publications

(12 citation statements)

References 156 publications

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“…Several methods have recently been developed for the determination of triazines in water samples by gas chromatography [1][2][3] and high-performance liquid chromatography [4][5][6][7][8]. Recently, it has been reported [12,13] that CE coupled with different preconcentration and extractcleanup processes (stacking techniques, isotachophoresis, solid-phase extraction (SPE) and the use of membranes) offers many possibilities in the fields of separation and determination of environmental pollutants [14]. CE also shows high efficiency in separating pollutants of environmental interest.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of separation and determination of triazines by micellar electrokinetic capillary chromatography and nonaqueous capillary electrophoresis: Application to residue analysis in natural waters

et al. 2002

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The separation and determination of a mixture of chloro- and methylthiotriazines in water samples by both micellar electrokinetic capillary chromatography (MEKC) and nonaqueous capillary zone electrophoresis (NA-CZE) were compared. The characteristics of both methods proved to be very similar in terms of separation efficiency and analysis times, but application of these methods for the analysis of triazines in natural waters, with a prior preconcentration step, revealed significant differences. A preconcentration step by solid-phase extraction (SPE) with Oasis HLB cartridges was accomplished for the determination of triazines at sub-ppb levels in drinking and river waters; when NA-CZE was used after this SPE step, electropherograms with fewer interferences and more stable baselines were obtained than when separation was carried out using MEKC. Another aspect related to the application to real samples was the lack of precision encountered upon evaluating the electrophoretic signals generated when using SPE coupled with NA-CZE. Here, we demonstrate the importance of choosing an appropriate internal standard for analyte quantification. It is recommended that a triazine belonging to the same family as that of the triazine to be determined should be used as internal standard.

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Section: Introductionmentioning

confidence: 99%

Comparative study of separation and determination of triazines by micellar electrokinetic capillary chromatography and nonaqueous capillary electrophoresis: Application to residue analysis in natural waters

et al. 2002

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“…Covering the period between the second half of 1999 and early 2001, this review focuses on significant developments of pollutant analysis using CE and capillary electrochromatography (CEC). In this way, it is a continuation of the previous review on organic pollutants by Sovocool et al [1] published in this journal, but in addition covers major developments for inorganic pollutants. Because of other reviews that appear in this issue, coverage of pesticides and herbicides has been excluded.…”

Section: Introductionmentioning

confidence: 81%

Recent advances in capillary electrophoresis and capillary electrochromatography of pollutants

2001

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An overview of major developments in capillary electrophoresis and capillary electrochromatography systems in the environmental field is presented, covering relevant publications between the second half of 1999 and early 2001. Contributions are reviewed in relation to developments in detection, sample preparation/preconcentration, precision and applications. Many interesting examples are shown and the influence of important parameters on the performance of developed methods is discussed.

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“…Some examples of sample pretreatment/preparation methods used for capillary electrophoresis analysis are given in Table 1. complexation, extraction, centrifugation and filtration Chen et al, 2001 As, Se, Sb, Te (organic or inorganic compounds) extraction, centrifugation and filtration Casiot et al, 2002 organic anions centrifugation and filtration Westergraad et al, 1998 ion exchange and centrifugation (guidelines of the International Humic Substances Society-IHSS) Schmitt-Kopplin et al, 1998 explosives (TNT and their metabolites) extraction (in ACN), centrifugation and filtration Groom et al, 2000 LACA ion exchange, centrifugation and filtration Strobel et al, 2001 There are several reviews available, on capillary electrophoresis application to environmental samples, mainly addressed to groups of compounds of interest, as mutagenic heterocyclic amines (Kataoka, 1997), inorganic ions (Fukushi et al, 1999), surfactants (Heinig andVogt, 1999), organic pollutants (Sovocool et al, 1999, Martinez et al, 2000, haloacetic acids (Urbansky 2000), arsenic species (Jain and Ali 2000), algal toxins (Pierce and Kirkpatrik 2001), inositol phosphate , pesticides and their degradation compounds (Andreu and Pico, 2004). CE has been reported as a successful method for environmental sample analysis, with different separation modes CZE, MECK, CEC, even in non-aqueous electrolytes (NACE) (Heinig and Vogt, 1999).…”

Section: Assessment Of the Pops Issues In The Republicmentioning

confidence: 99%

“…Cationic surfactants were added in the electrolyte, like an organic ammonium hydroxide (TTAOH) or an organic ammonium salts, bromide form, (TTAB) Strobel et al, 2001;Sovocool et al, 1999;Heining and Vogt, 1999;Chen et al, 2001).…”

Section: Assessment Of the Pops Issues In The Republicmentioning

confidence: 99%

Soil Chemical Pollution, Risk Assessment, Remediation and Security

Simeonov¹,

Sargsyan²

2008

NATO Science for Peace and Security Series C: Environmental Security

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Plant ecophysiology Effects of pollutants (ozone, UV-B, metals, acidic deposition, and surfactants)and climate change (drought, frost) on forests and trees (gas exchange, water relations, cuticles, roots, ectomycorrhizas, growth and pollen) biomonitoring, moss biomonitoring, raptor biomonitoring, heavy metal contamination, cellular localization of metals, hydrological fluxes of forest canopies. expertise in sustainable development, particularly in the following areas: environmental services, ecology and biogeochemistry of ecosystems and agroecosystems, bioenergy, biofuels, biochar, remote sensing, and electron microscopy applied to nanotechnology, electronics and automation, climate change adaptation and mitigation of greenhouse gases emissions.

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Capillary electrophoresis and capillary electrochromatography of organic pollutants

Cited by 32 publications

References 156 publications

Comparative study of separation and determination of triazines by micellar electrokinetic capillary chromatography and nonaqueous capillary electrophoresis: Application to residue analysis in natural waters

Comparative study of separation and determination of triazines by micellar electrokinetic capillary chromatography and nonaqueous capillary electrophoresis: Application to residue analysis in natural waters

Recent advances in capillary electrophoresis and capillary electrochromatography of pollutants

Soil Chemical Pollution, Risk Assessment, Remediation and Security

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