Direct determination of metallic elements in solid, powder samples with electrically vaporized thin film atomic emission spectrometry

Goldberg, Joel M.; Sacks, Richard

doi:10.1021/ac00250a011

Cited by 26 publications

(29 citation statements)

References 23 publications

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“…EXPERIMENTAL SECTION Experiment Design. Discharge circuits for both unconfined and magnetically confined plasma generation have been described in detail (12,14), as have coil and chamber design and orientation (13,14). Table I shows conditions for high-inductance nontailored and low-inductance magnetically tailored discharges.…”

Section: Literature Citedmentioning

confidence: 99%

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Atomization characteristics and direct determination of manganese and magnesium in biological samples using a magnetically altered thin-film plasma

Brewer¹,

Sacks²

1988

Anal. Chem.

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Section: Literature Citedmentioning

confidence: 99%

“…Quantitative results were obtained for comparison from discharges found earlier to be analytically useful. These discharges use high circuit inductance with no magnetic field (12) and low circuit inductance with an external magnetic field (14).…”

Section: Literature Citedmentioning

confidence: 99%

Atomization characteristics and direct determination of manganese and magnesium in biological samples using a magnetically altered thin-film plasma

Brewer¹,

Sacks²

1988

Anal. Chem.

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“…Silver thin films were prepared on polypropylene substrates as described previously [4]. Table 1 gives thin film/substrate properties and discharge conditions.…”

Section: Procedures and Materialsmentioning

confidence: 99%

“…THE HIGH-temperature metal vapor plasmas produced by the capacitive discharge vaporization of thin metal films have been used for the determination of trace metallic elements in both solution [ 1,2] and solid powder [3][4][5][6] samples. High plasma tem~rature and density [7] result in rapid sample atomization and relative freedom from concomitant and sample particle size effects.…”

Section: Introductionmentioning

confidence: 99%

Dielectric breakdown characteristics of a high current metal vapor plasma

Tisack

Sacks

1987

Spectrochimica Acta Part B: Atomic Spectroscopy

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Time-and spatially-resolved spectroscopy is used to study the early-time spectral features of the plasmas produced by h~gh~u~ent, capacitive discharges through thin silver films. Spectra are compared for several support gases including C02, He, and an Ar/O, mixture. Al1 measurements were made during the first 40 ps of the discharge. At atmospheric pressure for all three gases, spectra from support gas species show intense lines for only a brief interval between 10 and 30 ,us after the start of the discharge. Greatest intensity from silver tines always occurs at the film surface; while greatest intensity from support gas species occurs about 2.0 mm from the film surface. A magnetic field of a few kG normal to the electric field in the plasma and parallel to the thin film surface almost completely eliminates spectral lines from the support gas species.

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“…The high-current capacitive discharge circuit used to generate the plasma also was used to generate the external magnetic field. Large air-core inductors have been used in previous electrically vaporized thin film studies to decrease ringing frequency and increase plasma duration [12,14]. In the present study, a 105 PH inductor was redesigned to fit on the nylon discharge chamber.…”

Section: Magneticjeld Generation and Plasma-field Orientationmentioning

confidence: 99%

Radiative properties of an electrically-vaporized thin film plasma in an external magnetic field

Albers

Sacks

1986

Spectrochimica Acta Part B: Atomic Spectroscopy

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An external magnetic field of a few kilogauss is used to alter significantly the radiative properties of the plasmas generated by the capacitive discharge vaporization of thin Ag films. The magnetic field is generated by the plasma current in a large inductor surrounding the plasma. The magnetic field is oriented normal to the electric field in the plasma. This generates a drift motion of the plasma normal to the plane established by the electric and magnetic field vectors. The drift motion can direct the plasma toward the plastic substrate on which the Ag film and a powder or solution residue sample were originally located. This increases the plasma-sample interaction. Time integrated, spatially resolved photographic spectra and spatially resolved photoeiectric radiation profiles show that with the magnetic field, the continuum background radiation is confined to a relatively small region near the substrate surface. This results in significantly larger analyte line-t~~k~ound intensity ratios in the region l-2 cm above the substrate surface.

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Direct determination of metallic elements in solid, powder samples with electrically vaporized thin film atomic emission spectrometry

Cited by 26 publications

References 23 publications

Atomization characteristics and direct determination of manganese and magnesium in biological samples using a magnetically altered thin-film plasma

Atomization characteristics and direct determination of manganese and magnesium in biological samples using a magnetically altered thin-film plasma

Dielectric breakdown characteristics of a high current metal vapor plasma

Radiative properties of an electrically-vaporized thin film plasma in an external magnetic field

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