Recent advances in CE and CEC of pollutants

Da̧bek-Złotorzyńska, Ewa; Celo, Valbona; Yassine, Mahmoud M.

doi:10.1002/elps.200700510

Cited by 22 publications

(12 citation statements)

References 104 publications

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“…Capillary electrophoresis (CE) can be applied to the analysis of charged species or compounds that are in equilibrium with a charged form, and are thus generally suited to carboxylic acids as summarized in a recent review (Dabek-Zlotorzynska et al, 2008). CE can also be coupled to MS and has been used to investigate the organic acids and acidic oligomers in SOA formed in simulation chamber studies (Iinuma et al, 2004(Iinuma et al, , 2005Müller et al, 2007).…”

Section: Off-line High Complexity Soa Measurementsmentioning

confidence: 99%

The formation, properties and impact of secondary organic aerosol: current and emerging issues

et al. 2009

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Abstract. Secondary organic aerosol (SOA) accounts for a significant fraction of ambient tropospheric aerosol and a detailed knowledge of the formation, properties and transformation of SOA is therefore required to evaluate its impact on atmospheric processes, climate and human health. The chemical and physical processes associated with SOA formation are complex and varied, and, despite considerable progress in recent years, a quantitative and predictive understanding of SOA formation does not exist and therefore represents a major research challenge in atmospheric science. This review begins with an update on the current state of knowledge on the global SOA budget and is followed by an overview of the atmospheric degradation mechanisms for SOA precursors, gas-particle partitioning theory and the analytical techniques used to determine the chemical composition of SOA. A survey of recent laboratory, field and modeling studies is also presented. The following topical and emerging issues are highlighted and discussed in detail: molecular characterization of biogenic SOA constituents, condensed phase reactions and oligomerization, the interaction of atmospheric organic components with sulfuric acid, the chemical and photochemical processing of organics in the atmospheric aqueous phase, aerosol formation from real plant emissions, interaction of atmospheric organic components with water, thermodynamics and mixtures in atmospheric models. Finally, the major challenges ahead in laboratory, field and modeling studies of SOA are discussed and recommendations for future research directions are proposed.

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Section: Off-line High Complexity Soa Measurementsmentioning

confidence: 99%

The formation, properties and impact of secondary organic aerosol: current and emerging issues

et al. 2009

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“…In addition, many separation and detection systems incorporating microchips have the potential to effectively identify and quantify environmental pollutants (Veuthey 2005;Dabek-Zlotorzynska et al 2008;Yang et al 2001;Li and Lin 2009;Xiao et al 2007;Holland and Leigh 2002;Stege et al 2009). Of the methods available, microchip capillary electrophoresis-electrochemical detection (CE-ECD) has the advantages of low cost, short analysis time, minimal wastewater output, high separation efficiency and high sensitivity, in addition to the potential for miniaturization (Song and Chen 2001;Chen et al 2006Wang 2005).…”

Section: Introductionmentioning

confidence: 99%

Enhanced aminophenols monitoring using in-channel amperometric detection with dual-channel microchip capillary electrophoresis

Hahn

2010

Environ Chem Lett

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Improved techniques are needed to monitor toxic aminophenols in industrial wastewater. Microchip capillary electrophoresis (CE)-electrochemical detection (ECD) can be used to develop miniaturized system providing on-site monitoring. Here, a dual-channel microchip CE-ECD has been applied for the monitoring of aminophenols. The effect of conductance and capacitance between a working electrode and a reference electrode has been studied to minimize the noise that was generated in the amperometric detection. A mixture of aminophenols dissolved in a running buffer has been monitored. A separation efficiency with a plate number of 4770 and a high linear concentration dependence from 100 nM to 1 mM have been achieved for p-aminophenol. As a result, the analysis system has been applied for the monitoring of the pollutants with low detection limits of p-aminophenol (14.6 nM), o-aminophenol (10.6 nM) and m-aminophenol (15.3 nM). Here, we show that a wastewater sample from a natural gas refinery can be monitored using the microchip CE-ECD system.

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“…There are a number of reviews in the literature that cover the use of CE and CE-MS for specific applications including proteomics [22][23][24], metabolomics [25], forensic [26], environmental [27] and clinical sciences [28]. In the majority of these examples, the purpose of CE was to serve as a separation tool and resolve the components in a sample mixture.…”

Section: Introductionmentioning

confidence: 99%

Recent applications of capillary electrophoresis–mass spectrometry (CE–MS): CE performing functions beyond separation

Nesbitt

Zhang

Yeung

2008

Analytica Chimica Acta

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Recent advances in CE and CEC of pollutants

Cited by 22 publications

References 104 publications

The formation, properties and impact of secondary organic aerosol: current and emerging issues

The formation, properties and impact of secondary organic aerosol: current and emerging issues

Enhanced aminophenols monitoring using in-channel amperometric detection with dual-channel microchip capillary electrophoresis

Recent applications of capillary electrophoresis–mass spectrometry (CE–MS): CE performing functions beyond separation

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