Atomic emission gas chromatographic detection—chemical and spectral interferences in the stabilized capacitive plasma (SCP)

Gross, Robert A.; Platzer, Bernhard; Leitner, Erich; Schalk, Andreas; Sinabell, Hans; Zach, Hannes; Knapp, Günter

doi:10.1016/0584-8547(92)80010-e

Cited by 33 publications

(13 citation statements)

References 22 publications

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“…The microplasma is a further development of the stabilized capacitive plasma (SCP) [3,4] and is distinguished by an extremely simple construction and high robustness. It was designed for gas chromatographic detection of various non-metals, especially the halogens and sulfur, in the near-infrared spectral range (NIR).…”

Section: Methodsmentioning

confidence: 99%

Hyphenation of a near-infrared Echelle spectrometer to a microplasma for element-selective detection in gas chromatography

Cziesla

Platzer

Okruss

et al. 2001

Fresenius J Anal Chem

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The coupling of a near-infrared Echelle spectrometer (NIRES) with a gas chromatograph for element-selective detection is introduced. The miniaturized capacitive plasma device is operated at a frequency of 40.68 MHz and is mounted directly on an Hewlett-Packard HP6890 GC. First results with a mixture of halogenated standard compounds are presented and discussed in terms of the advantages and problems with this system.

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Section: Methodsmentioning

confidence: 99%

Hyphenation of a near-infrared Echelle spectrometer to a microplasma for element-selective detection in gas chromatography

Cziesla

Platzer

Okruss

et al. 2001

Fresenius J Anal Chem

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“…Low-power versions of ICPs operating well at 200 W have been described as research tools [29] but never stimulated widespread practical interest. For element-specific detection in gas chromatography, however, Gross et al [30] developed a stabilized capacitive plasma operated at 100 W in argon or helium. This plasma is formed inside a quartz tube between two ring-shaped electrodes positioned around the tube at a distance of ca 20 mm.…”

Section: High-frequency Plasmasmentioning

confidence: 99%

The development of microplasmas for spectrochemical analysis

Broekaert

2002

Anal Bioanal Chem

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Miniaturized microwave, high-frequency, and dc-powered microplasmas are discussed, with emphasis on the state-of-the-art and development trends. Specific atomic emission sources discussed include the microstrip microwave plasma operated in argon and helium at ca 10-30 W and below 1 L min(-1) gas at atmospheric pressure, the capacitively coupled microplasma, operated at 13.56 MHz, 5-25 W, and 17-150 mL min(-1) helium, the miniaturized inductively coupled plasma operated at several watts and reduced pressure, and dc glow-discharge plasmas on a chip, including a barrier-layer discharge as atom reservoir for atomic absorption spectrometry. Diagnostics for these sources are discussed and some of their figures of merit are compared with those of conventional sources. Current possibilities for introduction of gaseous samples are reported and scope for further development and outlook are both discussed.

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“…2 As a minority, some alternatives, e.g. capacitively coupled plasma (CCP) [4][5][6][7] or microwave-induced plasmas (MIPs) 8 are studied for analytical purposes and various sub-types were constructed. The sensitivity of discharges to water presence is a substantial limitation and can be eliminated in some cases by hydride generation, 3,9 for example, or a special desiccation system must be employed.…”

Section: Introductionmentioning

confidence: 99%

Plasma pencil as an excitation source for atomic emission spectrometry

Novosád

Hrdlička

Slavíček

et al. 2012

J. Anal. At. Spectrom.

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A 13.56 MHz plasma jet discharge, called a plasma pencil, was investigated. Rotational and excitation temperatures, and electron number densities for the pencil under and without sample load were calculated using OH band spectra, Ar lines and Hb line, respectively. The rotational temperatures were found to be relatively low at about 800 K, however, excitation temperatures exceeded 4000 K. The plasma was found to be strongly non-isothermal. Some atomic lines of elements were easily observed. Aqueous solution-based aerosols were incorporated into the plasma without desolvation. Standard water solutions of the elements were nebulized into the plasma. The Ar carrier gas and Ar plasma gas flow rates were 0.3 and 4.0 l min À1 , respectively. The forwarded power was 140 W. Intensities of the atomic lines, temperatures and electron number densities along the discharge tube were acquired in different positions from the aerosol entrance and an optimal position providing the best signal-to-noise ratio for each line intensity was established. Calibration dependencies for Ca, Cu, Mg, Zn, Li, Na were measured in the rage of 1-100 mg l À1 . 3-sigma detection limits in the best observation axial position were (mg l À1 ): 27 (Ca), 49 (Cu), 58 (Mg), 40 (Li), 13 (Na) and 180 (Zn).

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Atomic emission gas chromatographic detection—chemical and spectral interferences in the stabilized capacitive plasma (SCP)

Cited by 33 publications

References 22 publications

Hyphenation of a near-infrared Echelle spectrometer to a microplasma for element-selective detection in gas chromatography

Hyphenation of a near-infrared Echelle spectrometer to a microplasma for element-selective detection in gas chromatography

The development of microplasmas for spectrochemical analysis

Plasma pencil as an excitation source for atomic emission spectrometry

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