Evaluation of an Ultrasonic Nebulizer Interface for Capillary Electrophoresis and Inductively Coupled Plasma Mass Spectrometry

Lu, Qinghong; Barnes, Ramon M.

doi:10.1006/mchj.1996.0086

Cited by 67 publications

(20 citation statements)

References 21 publications

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“…Most of the problems encountered in this study could be solved by the use of a selective and sensitive detection method such as ICP-MS. Our intention is to couple CE with ICP-MS, as described recently. [41][42][43][44][45][46][47][48] Paper 8/05954C Fig. 5 Hydrostatic injection of a water extract of an industrial soil.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous speciation of arsenic, selenium, antimony and tellurium species in waters and soil extracts by capillary electrophoresis and UV detection

Casiot¹,

Donard²,

Potin‐Gautier³

et al. 1998

Analyst

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Capillary electrophoresis with indirect UV detection was used to determine simultaneously arsenic, selenium, antimony and tellurium compounds. The separation was achieved in a fused silica capillary filled with an electrolyte solution containing sodium chromate and an electroosmotic flow modifier, trimethyltetradecylammonium hydroxide (TTAOH). The effect of the TTAOH concentration and electrolyte solution pH on the electrophoretic mobility of the species was studied. The best simultaneous separation of these species was achieved with 0.5 mm TTAOH and an electrolyte pH of 11.2 within 5 min. Detection limits range from 13 mg l 21 for Se VI to 509 mg l 21 for Te IV with electromigrative injection. The reproducibility was below 10% and linearity was verified in the 0-100 mg l 21 range for all species. Interferences by other inorganic ions were studied. This method was applied to the determination of metalloids in a spiked drinking water. Water extracts of industrial soils were analysed and results were compared with those of ICP-MS measurements.

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Section: Resultsmentioning

confidence: 99%

Simultaneous speciation of arsenic, selenium, antimony and tellurium species in waters and soil extracts by capillary electrophoresis and UV detection

Casiot¹,

Donard²,

Potin‐Gautier³

et al. 1998

Analyst

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show abstract

“…The use of a micronebulizer and direct injection can alleviate this problem; and (ii) loss of separation efficiency due to the occurrence of a laminar flow in the capillary created by the nebulizer suction. The use of an interface with a suction-free nebulizer, for example, direct injection (DIN) [105], ultrasonic nebulizer [106], and a direct injection high-efficiency nebulizer operating at low uptake rates [107] has been proposed to solve this problem.…”

Section: Speciation Analysismentioning

confidence: 99%

Atomic Spectrometric Techniques for the Analysis of Clinical Samples

Bermejo-Barrera

Moreda-Piñeiro

Alonso

2012

Analytical Techniques for Clinical Chemistry

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“…CE-ICP-MS has been used by several research groups to separate isoforms of MTs and correlate the metal species in the isoforms [5,9,19,22,32]. Using the PTFE capillary-CE-ICP-AES system, baseline separation of the isoforms is readily obtained.…”

Section: Separation Of Mtsmentioning

confidence: 99%

Metal speciation using capillary electrophoresis - inductively coupled plasma atomic emission spectrometry and polytetrafluoroethylene capillaries

Deng

Chan

2001

Electrophoresis

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A capillary electrophoresis--inductively coupled plasma atomic-emission spectrometry (CE-ICP-AES) system using a polytetrafluoroethylene (PTFE) capillary has been developed. The CE-ICP interface was a modified concentric nebulizer. The PTFE capillary (50 microm internal diameter) was used as the central capillary of the nebulizer. Using the PTFE capillaries, the solution flow rate induced by the carrier gas flow was smaller than that of glass capillary. Solution flow was mainly induced by the CE electric field. Baseline separation of Ba2+/Mg2+ ion pair using simple buffer solution of 0.014 M sodium acetate was reported. Separation and correlation of metal species in metallothioneins (MT-1 and MT-2 in MT) of rabbit liver using the CE-ICP system were also discussed.

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Evaluation of an Ultrasonic Nebulizer Interface for Capillary Electrophoresis and Inductively Coupled Plasma Mass Spectrometry

Cited by 67 publications

References 21 publications

Simultaneous speciation of arsenic, selenium, antimony and tellurium species in waters and soil extracts by capillary electrophoresis and UV detection

Simultaneous speciation of arsenic, selenium, antimony and tellurium species in waters and soil extracts by capillary electrophoresis and UV detection

Atomic Spectrometric Techniques for the Analysis of Clinical Samples

Metal speciation using capillary electrophoresis - inductively coupled plasma atomic emission spectrometry and polytetrafluoroethylene capillaries

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