On-Line Flow Injection—Capillary Electrophoresis Instrument with Contactless Conductivity Detection for Sensitive Cation Analyses

An overview of the developments of capacitively coupled contactless conductivity detection in CE and related techniques over approximately the last 2 years is given. The method has seen strong growth, and diverse new applications are being reported. Besides more advanced techniques on conventional capillaries, these include further developments of detection on lab-on-chip devices as well as in miniaturized chromatographic systems and some methods not involving separations. An increasing number of reports are based on the now readily available commercial detectors, but, while few publications on fundamental studies have appeared recently, interesting new approaches on creating low cost devices have also appeared.

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“…Sprung et al . 74 reported a system designed for the sensitive determination of inorganic ions in water treatment. Mai et al .…”

Section: Electrophoresis Methods With Conventional Capillariesmentioning

confidence: 99%

Capacitively coupled contactless conductivity detection for microseparation techniques – recent developments

2010

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“…In these areas of practical inorganic analysis, alternative injection techniques, such as flow‐injection 111, 156, sequential injection 157 and special rapid injection devices 158, have been combined with CE‐C 4 D. Moreover, a wide range of BGEs has been investigated to reach the best separation efficiencies and detection limits. In particular, MES/Histidine has found widespread use in separations of both cations and anions, due to its low‐specific conductivity, considerably high ionic strength, and good separation efficiency.…”

Section: Capacitively‐coupled Contactless Conductivity Detection (C4d)mentioning

confidence: 99%

Recent significant developments in detection and method development for the determination of inorganic ions by CE

Johns¹,

Breadmore²,

Macka³

et al. 2009

Electrophoresis

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CE has been available as a tool for almost 20 years, but it is only in the past several years that it has been implemented widely. This has been the result of some significant advances in the technique. These fall in the areas of indirect photometric detection (through the use of dyes as probes and LEDs as light sources), the introduction and establishment of capacitively-coupled contactless conductivity detection (C4D) as a routine, sensitive and commercially available detection method, and in software capable of simulation of separations and the selection of optimal composition of the BGE. These developments are reviewed and their impact illustrated by reference to a case study involving the rapid separation and sensitive detection of 15 anions and 12 cations on a portable CE instrument. It is shown that C4D provides considerably superior detection sensitivity (by a factor of about 8 in comparison with optimised indirect photometry).

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“…Recently reported applications of such detection include, e.g. determination of pharmaceuticals classified as emerging pollutants [210]. Very recently this particular mode of conductivity detection was a subject of very detailed review [211].…”

Section: Conductivity Detection In Capillary Electrophoresismentioning

confidence: 99%

Recent developments in electrochemical flow detections—A review

Trojanowicz

2009

Analytica Chimica Acta

129

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On-Line Flow Injection—Capillary Electrophoresis Instrument with Contactless Conductivity Detection for Sensitive Cation Analyses

Cited by 12 publications

References 27 publications

Capacitively coupled contactless conductivity detection for microseparation techniques – recent developments

Capacitively coupled contactless conductivity detection for microseparation techniques – recent developments

Recent significant developments in detection and method development for the determination of inorganic ions by CE

Recent developments in electrochemical flow detections—A review

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