The use of different sample introduction techniques in combination with the low power stabilized capacitive plasma (SCP) as a radiation source for atomic emission spectrometry

Luge, S.; Broekaert, J. A. C.; Schalk, Andreas; Zach, Hannes

doi:10.1016/0584-8547(94)00148-o

Cited by 12 publications

(3 citation statements)

References 20 publications

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“…For arsenic the LOD is better than 40 ng mL À1 obtained with stabilized capacitive plasma operating at 27.12 MHz. 15 Conclusion A digitally controlled rotating field helium plasma source operating at atmospheric pressure has been evaluated for use in the optical emission spectrometric determination of some elements. It has been found to offer several advantages over alternative designs.…”

Section: Determination Of Hydride Forming Elements and Mercurymentioning

confidence: 99%

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A digitally controlled rotating field plasma source for analytical spectrometry

Jankowski

Ramsza

Reszke³

et al. 2012

J. Anal. At. Spectrom.

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A highly flexible technology for constructing plasma sources based on the rotating field concept and the digitally controlled modulation of plasma heating is presented with the plasma source operating at audio and ultrasonic frequency adjustable in the 6-100 kHz range and powered in the 50-250 W range. The device allows for the production of non-stationary plasma discharge sustained by a rotating electric field produced within 5 electrodes positioned in the plane around the axis, while the plasma is temporarily stretched between at least two electrodes. A stable symmetrical low-flow helium discharge is formed at atmospheric pressure operating at total gas consumption of 100-1500 mL min À1 and it is self-igniting. The plasma fundamental parameters can be easily controlled in the wide range including He excitation temperature, OH rotational temperature and electron number density between 2200 and 3300 K, 850 and 1600 K, and 0.6 and 2.0 Â 10 14 cm À3 , respectively. Therefore, the excitation power of the source may be controlled by variations of the pulse width, frequency, commutation mode and gas flow rate. The device is shown to be useful for atomic emission spectrometric determination of hydride forming elements and mercury at the ng mL À1 level. The excess of hydrogen produced in the hydride generation process can be tolerated by the helium plasma. Also, the plasma can be stably operated with argon, air and nitrogen.

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Section: Determination Of Hydride Forming Elements and Mercurymentioning

confidence: 99%

“…For arsenic the LOD is better than 40 ng mL À1 obtained with stabilized capacitive plasma operating at 27.12 MHz. 15…”

Section: Determination Of Hydride Forming Elements and Mercurymentioning

confidence: 99%

A digitally controlled rotating field plasma source for analytical spectrometry

Jankowski

Ramsza

Reszke³

et al. 2012

J. Anal. At. Spectrom.

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“…2,[10][11][12][13][14][15] Atomic emission spectrometry using different radiofrequency capacitively coupled plasma sources (r.f.CCP-AES) was proposed as an alternative to ICP-AES because of the advantages related to versatility of the geometry operation, low Ar(He) consumption (<1 L min À1 ), low power operation level (<300 W), similar analytical performance for easily volatile and excitable elements and torch miniaturisation. [16][17][18][19][20][21][22][23] In our laboratory a r.f.CCP torch with single or double ring electrode (SRTr.f.CCP or DRTr.f.CCP) placed outside a quartz tube has been developed during the last 10 years as multielemental source for atomic emission spectrometry with the advantage of high stability of plasma for pneumatic nebulization without desolvation. [24][25][26] SRTr.f.CCP was employed for the first time as an atomization cell in AFS using electrodeless discharge lamp as the primary source (EDL-SRTr.f.CCP-AFS) with detection limits one order of magnitude lower than in AES using the same plasma.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of figures of merit for Zn determination in environmental and biological samples using EDL excited AFS in a new radiofrequency capacitively coupled plasma

Frențiu

Ponta

Șenilă

et al. 2010

J. Anal. At. Spectrom.

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Microwave‐Induced Plasma Systems in Atomic Spectroscopy

Broekaert

Engel

2000

Encyclopedia of Analytical Chemistry

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The use of microwave plasmas as radiation sources for optical atomic emission (AES), absorption (AAS) and fluorescence (AFS) spectroscopy and for laser ionization spectroscopy is treated and reference is also made to the use of microwave‐induced plasmas (MIPs) as ion sources for mass spectrometry (MS). Devices for producing both single‐electrode and electrodeless microwave plasmas are treated, in addition to methods for their diagnostics, and results for the analytically relevant plasma parameters are presented. Methods for sample introduction are discussed. They include dry aerosol generation techniques (hydride generation (HG), electrothermal evaporation, spark and laser ablation (LA)) and possibilities for the uptake of wet aerosols. Special reference is made to coupling with gas chromatography (GC) and also to the potential for coupling with high‐performance liquid chromatography (HPLC) Further, the use of microwave plasmas for cross‐excitation in the case of glow discharges (GDs) is treated. The analytical figures of merit in the case of AES with low‐power microwave plasmas, single‐electrode microwave plasmas, plasma torch sources and stabilized capacitively coupled plasmas are given also in the case of atomic absorption, fluorescence and laser ionization with these sources. The developments in MS in the case of both low‐power and high‐power microwave plasmas and in the case of various types of sample introduction are discussed. Applications of MIP atomic spectroscopy are in the fields of biological samples with special reference to microanalysis, and of environmental samples with special emphasis on metal speciation, on‐line monitoring and direct solids analysis. A critical comparison of the methodology with other methods for the determination of the elements and their species is given.

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The use of different sample introduction techniques in combination with the low power stabilized capacitive plasma (SCP) as a radiation source for atomic emission spectrometry

Cited by 12 publications

References 20 publications

A digitally controlled rotating field plasma source for analytical spectrometry

A digitally controlled rotating field plasma source for analytical spectrometry

Evaluation of figures of merit for Zn determination in environmental and biological samples using EDL excited AFS in a new radiofrequency capacitively coupled plasma

Microwave‐Induced Plasma Systems in Atomic Spectroscopy

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