Conductivity detection in capillary electrophoresis

Zemann, Andreas

doi:10.1016/s0165-9936(01)00076-0

Cited by 114 publications

(86 citation statements)

References 50 publications

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“…The lowest detection limit was estimated to be about 0.01 l for 1 mM KCl. Obtained results were close to the known from the literature typical values of the supplying signal for the conductivity measurements with galvanic feedback (Zemann, 2001). These values ensured high sensitivity of the microdetector in the wide range of the applied KCl www.intechopen.com solution concentrations and low, but easily measurable output signal of the microdetector, advantage from the point of view of the life-time of the thin electrodes.…”

Section: Discrete Microfluidical Flow-through Conductometric Detectorsupporting

confidence: 84%

Microsensors for Microreaction and Lab-on-a-Chip Applications

Knapkiewicz¹,

Walczak²

2011

Microsensors

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Section: Discrete Microfluidical Flow-through Conductometric Detectorsupporting

confidence: 84%

Microsensors for Microreaction and Lab-on-a-Chip Applications

Knapkiewicz¹,

Walczak²

2011

Microsensors

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“…Since then, an intense activity in this field took place and two reviews dealing exclusively with C 4 D were published [11,12]. The matter was also included in other reviews dealing with detection for CE [13 -15].…”

Section: Introductionmentioning

confidence: 99%

Understanding Capacitively Coupled Contactless Conductivity Detection in Capillary and Microchip Electrophoresis. Part 1. Fundamentals

et al. 2005

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Capacitively coupled contactless conductivity detection (C 4 D) is presented in a progressively detailed approach. Through different levels of theoretical and practical complexity, several aspects related to this kind of detection are addressed, which should be helpful to understand the results as well as to design a detector or plan experiments. Simulations and experimental results suggest that sensitivity depends on: 1) the electrolyte co-ion and counter-ion; 2) cell geometry and its positioning; 3) operating frequency. Undesirable stray capacitance formed due to the close placement of the electrodes is of great importance to the optimization of the operating frequency and must be minimized.

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“…Kappes and Hauser [21] have reviewed the potentiometric, amperometric and conductometric detection techniques in CE. Zemann [22] has described conductivity detection in conventional capillaries in general, which includes a discussion on CCD. Tanyanyiwa et al [23] have published a review on potentiometric and conductometric detection in conventional and microchip capillary electrophoresis.…”

Section: Introductionmentioning

confidence: 99%

Contactless Conductivity Detection in Capillary Electrophoresis: A Review

2004

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The popularity of contactless conductivity detection in capillary electrophoresis has been growing steadily over the last few years. Improvements have been made in the design of the detector in order to facilitate its handling, to allow easy incorporation into available instruments or to achieve higher sensitivity. The understanding of its fundamental working principles has been advanced and the detection approach has also been transferred to lab-on-chip devices. The range of applications has been extended greatly from the initial work on small inorganic ions to include organic species and biomolecules. Concurrent determination of cations and anions by dual injection from opposite ends has been demonstrated as well as sample introduction by using flow-injection systems for easy automation of the process.

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Conductivity detection in capillary electrophoresis

Cited by 114 publications

References 50 publications

Microsensors for Microreaction and Lab-on-a-Chip Applications

Microsensors for Microreaction and Lab-on-a-Chip Applications

Understanding Capacitively Coupled Contactless Conductivity Detection in Capillary and Microchip Electrophoresis. Part 1. Fundamentals

Contactless Conductivity Detection in Capillary Electrophoresis: A Review

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