Magnetron rotating direct current arc using graphite furnace sample introduction for micro solution analysis

Slinkman, David; Sacks, Richard

doi:10.1021/ac00214a024

Cited by 7 publications

(4 citation statements)

References 16 publications

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“…The relatively short sample residence time in the hightemperature current sheet makes the device more useful for solution samples introduced from a graphite furnace (17) than for solutions nebulized into the plasma (16). The interface of the graphite furnace to the magnetron rotating DCP also makes possible the introduction of solids.…”

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confidence: 99%

“…A graphite tube furnace (F) (Instrumentation Laboratory Model 555) was interfaced to the rotating DCP (17). A 7.5-cm-long, 3.0-mm-i.d.…”

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confidence: 99%

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confidence: 99%

“…The initiation of the furnace heating cycle did not result in a major change in the plasma structure. The procedure for data manipulation has been described previously (17).…”

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confidence: 99%

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Direct analysis of solid powder biological samples using a magnetron rotating direct-current arc plasma and graphite furnace sample introduction

Slinkman¹,

Sacks²

1991

Anal. Chem.

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Solid powder samples deposited In a graphite tube furnace are vaporized and introduced Into a magnetron rotating direct-current arc plasma. The arc plasma has the form of a radial current sheet that completely covers the end of the graphite anode. The sample vapor from the graphite furnace Is forced to pass through the current sheet. This ensures adequate sample-plasma interaction and results In detection limits in the microgram/gram range. Analytical data will be presented for pure solid powder samples and for a number of NIST biological reference materials. Percent error values for the determination of various metallic elements using the method of standard additions ranged from 1.2% to 19.6%. Absolute detection limits at the subnanogram level are reported.

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confidence: 99%

“…A graphite tube furnace (F) (Instrumentation Laboratory Model 555) was interfaced to the rotating DCP (17). A 7.5-cm-long, 3.0-mm-i.d.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

“…The initiation of the furnace heating cycle did not result in a major change in the plasma structure. The procedure for data manipulation has been described previously (17).…”

mentioning

confidence: 99%

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Direct analysis of solid powder biological samples using a magnetron rotating direct-current arc plasma and graphite furnace sample introduction

Slinkman¹,

Sacks²

1991

Anal. Chem.

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Electrothermal vaporization sample introduction into plasma sources for analytical emission spectrometry

Matusiewicz¹

1995

Advances in Atomic Spectroscopy

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Quantitation of acidic sites in faujasitic zeolites by resonance Raman spectroscopy

Place¹,

Dutta²

1991

Anal. Chem.

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This paper examines the selective excitation of the Raman spectra of dye molecules adsorbed on acidic zeolite surfaces. By taking advantage of the strongly allowed transitions In these dye molecules (large extinction coefficients) and the different absorption maxima of the conjugate acid and base forms of the dye, selective enhancements of the Raman bands specific to each form can be obtained. The focus has been on the dye molecule, 4-(phenylazo)dlphenylamlne (PDA), adsorbed onto the faujasitic zeolite, NaY. A calibration curve of Raman Intensity (peak area) versus number of protons In supercages was obtained. Because of the Inner filter effect, at loadings significantly greater than 1 proton per supercage, the Raman intensity was found to decrease. The sensitivity of the Raman method at low proton loadings appears to be considerably better than the typical infrared methods used to estimate acidity on catalyst surfaces.

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Magnetron rotating direct current arc using graphite furnace sample introduction for micro solution analysis

Cited by 7 publications

References 16 publications

Direct analysis of solid powder biological samples using a magnetron rotating direct-current arc plasma and graphite furnace sample introduction

Direct analysis of solid powder biological samples using a magnetron rotating direct-current arc plasma and graphite furnace sample introduction

Electrothermal vaporization sample introduction into plasma sources for analytical emission spectrometry

Quantitation of acidic sites in faujasitic zeolites by resonance Raman spectroscopy

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