A sheath flow gating interface for the on-line coupling of solid-phase extraction with capillary electrophoresis

Weng, Qianfeng; Fu, Lianjuan; Li, Xintong; An, Ran; Li, Jinxiang

doi:10.1016/j.aca.2014.10.050

Cited by 12 publications

(4 citation statements)

References 31 publications

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“…Overall, the results indicate that the μ‐TFGI has the potential to reliably transfer nanoliters of fractions from SPE to CE without compromising separation efficiency. The same group also developed a sheath flow gating interface (SFGI) for the on‐line coupling of SPE to CE . A scheme of the SFGI is shown in Fig.…”

Section: Technological Developmentsmentioning

confidence: 99%

Developments in coupled solid‐phase extraction–capillary electrophoresis 2013–2015

2015

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An overview of the design and application of coupled solid-phase extraction-capillary electrophoresis (SPE-CE) systems reported in the literature between July 2013 and June 2015 is provided in this paper. The present article is a continuation of our previous review papers on this topic which covered the time period 2000-2013 (Electrophoresis 2008, 29, 108-128; Electrophoresis 2010, 31, 44-54; Electrophoresis 2012, 33, 243-250; Electrophoresis 2014, 35, 128-137). The use of in-line and on-line SPE-CE approaches is treated and outlined in this review. Recent advancements, such as, for example, the use of aptamers as affinity material for in-line SPE-CE, the use of a bead string design for in-line fritless SPE-CE, and new interfacing techniques for the on-line coupling of SPE to CE, are outlined. Selected examples demonstrate the applicability of the coupled SPE-CE systems for biomedical, pharmaceutical, environmental, and food studies. A complete overview of the recent SPE-CE studies is given in table format, providing information on sample type, SPE sorbent, coupling mode, detection mode, and LOD. Finally, some general conclusions and perspectives are provided.

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Section: Technological Developmentsmentioning

confidence: 99%

Developments in coupled solid‐phase extraction–capillary electrophoresis 2013–2015

2015

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“…This is perhaps the reason why this interface is rarely used. Some remarkable examples are the sheath FG interface for the online coupling of solid-phase extraction with CE [ 21 ], and the PDMS interface for FG and reagent mixing in CE [ 22 ].…”

Section: Coupling Fia To Ce Onlinementioning

confidence: 99%

Capillary Electrophoresis as a Monitoring Tool for Flow Composition Determination

et al. 2021

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Flow analysis is the science of performing quantitative analytical chemistry in flowing streams. Because of its efficiency and speed of analysis, capillary electrophoresis (CE) is a prospective method for the monitoring of a flow composition withdrawn from various processes (e.g., occurring in bioreactors, fermentations, enzymatic assays, and microdialysis samples). However, interfacing CE to a various flow of interest requires further study. In this paper, several ingenious approaches on interfacing flow from various chemical or bioprocesses to a capillary electrophoresis instrument are reviewed. Most of these interfaces can be described as computer-controlled autosamplers. Even though most of the described interfaces waste too many samples, many interesting and important applications of the devices are reported. However, the lack of commercially available devices prevents the wide application of CE for flow analysis. On the contrary, this fact opens up a potential avenue for future research in the field of flow sampling by CE.

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“…Weng et al. developed a new sheath flow gating interface for the on‐line coupling of SPE column (containing hydroxylated poly(glycidyl methacrylate‐co‐ethylene dimethacrylate) monolith) with CE‐UV . The sheath flow design was based on the flow gating principle, and thus achieves small void volumes (10 nL).…”

Section: Extractionmentioning

confidence: 99%

Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2014–2016)

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Wuethrich

et al. 2016

Electrophoresis

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One of the most cited limitations of capillary (and microchip) electrophoresis is the poor sensitivity. This review continues to update this series of biennial reviews, first published in Electrophoresis in 2007, on developments in the field of on-line/in-line concentration methods in capillaries and microchips, covering the period July 2014-June 2016. It includes developments in the field of stacking, covering all methods from field amplified sample stacking and large volume sample stacking, through to isotachophoresis, dynamic pH junction, and sweeping. Attention is also given to on-line or in-line extraction methods that have been used for electrophoresis.

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A sheath flow gating interface for the on-line coupling of solid-phase extraction with capillary electrophoresis

Cited by 12 publications

References 31 publications

Developments in coupled solid‐phase extraction–capillary electrophoresis 2013–2015

Developments in coupled solid‐phase extraction–capillary electrophoresis 2013–2015

Capillary Electrophoresis as a Monitoring Tool for Flow Composition Determination

Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2014–2016)

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