The Study on the Arc Plasma Temperature Measurement by Optical Emission Spectroscopy with Fiber Optical Transmission

Wang, Junde; Li, Baoming; Gu, Binghe; Zhang, Jianqi; Huang, Xinhua; Dong, Jia; Li, Hongzhi

doi:10.1080/00387019808006775

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Excitation temperature was generally determined from the slope of the linear fitting of a Boltzmann plot. 30) The Boltzmann plot relation is…”

Section: Resultsmentioning

confidence: 99%

“…As a result, the excitation temperature deduced from the plot was 6200 K. This temperature indicates that it is sufficient to use LEP as a light source of emission spectrometers. Indeed, the excitation temperatures have been reported 6000 K in arc discharge 30) and to be 6000-8000 K in ICP. 31) These plasmas allow for the emission of high-energy excitation elements such as Cd and Zn.…”

Section: Resultsmentioning

confidence: 99%

“…In comparison with plasmas used in other atomic emission spectrometry, LEP has a higher excitation temperature. In flame spectroscopy, which is used to analyze only lowexcitation-energy elements in liquid sample, the excitation temperature is between 2000 and 3000 K. 32) The temperature of arc discharge employing solid samples is nearly 6000 K. 30) ICP, which is also an excitation source for liquid sample analysis, has been reported to have a temperature between 6000 and 8000 K. 31) The temperature of LEP is lower than that of ICP. However, it is sufficiently high among those emission light sources.…”

Section: Discussionmentioning

confidence: 99%

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Excitation Temperature Measurement in Liquid Electrode Plasma

Kumai

Takamura

2011

Jpn. J. Appl. Phys.

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Liquid electrode plasma atomic emission spectrometry (LEP-AES) is a novel elemental analysis method where a sample solution is placed in a small cuvette that has a narrow microchannel at the center. High voltage is applied to the solution from both ends of the cuvette channel, and then microplasma is generated in the channel. The microplasma is employed in atomic emission spectrometry as a plasma source. Excitation temperature was deduced using a Boltzmann plot. The temperature was determined to be 6200 K with a plastic chip at an applied voltage of 800 V. To investigate effects of the experimental conditions on excitation temperature, applied voltage, type of acid, and the shape of the cross section of a microchannel at the center of the cuvette were varied. The excitation temperature was not influenced by applied voltage or type of acid, but was affected by the shape of the cross section of the microchannel.

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“…Excitation temperature was generally determined from the slope of the linear fitting of a Boltzmann plot. 30) The Boltzmann plot relation is…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Excitation Temperature Measurement in Liquid Electrode Plasma

Kumai

Takamura

2011

Jpn. J. Appl. Phys.

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Highly Sensitive Elemental Analysis for Cd and Pb by Liquid Electrode Plasma Atomic Emission Spectrometry with Quartz Glass Chip and Sample Flow

Kitano

Iiduka

Yamamoto³

et al. 2011

Anal. Chem.

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This paper describes the development of a highly sensitive liquid-electrode plasma atomic emission spectrometry (LEP-AES) by combination of quartz glass chip and sample flow system. LEP-AES is an ultracompact elemental analysis method, in which the electroconductive sample solution is put into a microfluidic channel whose center is made narrower (∼100 μm in width). When high voltage pulses (1500 V) are applied at both ends of the channel, the sample evaporates locally at the narrow part and generates plasma. By the emission from the plasma, elemental concentration is analyzed. In this paper, the limits of detection (LODs) were investigated in various conditions of accumulation time, material of the chip, and the sample flow. It was found that the long accumulation using the quartz chip with sample flow was effective to improve LOD. Authors suggested that this was because bubbles remaining after each plasma pulse were removed from the narrow channel by sample flow, resulting in highly reproducible plasma generation, to enable a high accumulation effect. Finally, LODs were calculated from a calibration curve, to be 0.52 μg/L for Cd and 19.0 μg/L for Pb at optimized condition. Sub-ppb level LOD was achieved for Cd.

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Determination of selenoamino acids by high-performance liquid chromatography-hydraulic high pressure nebulization-atomic fluorescence spectrometry

Evans¹,

Chenery²,

Fisher³

et al. 1999

J. Anal. At. Spectrom.

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Arcs, sparks, low-pressure discharges, furnaces continues to be significant in many areas. In ICP-AES many applications in chemometrics, and the detection of transient and lasers 1.1 Arcs pulses from solid sampling and chromatography, have benefited from simultaneous detection of multiple lines. T he plethora of 1.2 Sparks 1.3 Low-pressure discharges equipment options for ICP-AES has resulted in a rash of studies on the combination of nebulizer, desolvation, axial 1.3.1 Glow discharges 1.3.2 Surface-wave magnetoplasma discharges viewing, internal standardization, etc., in order to improve figures of merit. 1.3.3 Fundamental studies 1.4 Furnaces Many applications of L A-AES are now reaching the published literature, including the development of portable 1.5 Lasers 1.6 Other sources instrumentation, and the technique has been used extensively for the investigation of ablation mechanisms. T he use of L IF 2 Inductively coupled plasmas 2.1 Fundamental studies has grown in popularity due to the increased availability of low-cost laser diodes in the visible spectrum. Glow discharges 2.2 Sample introduction 2.2.1 Nebulizers continue to find application in many areas, particularly for depth profiling analysis, and the direct analysis of flowing 2.

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The Study on the Arc Plasma Temperature Measurement by Optical Emission Spectroscopy with Fiber Optical Transmission

Cited by 5 publications

References 12 publications

Excitation Temperature Measurement in Liquid Electrode Plasma

Excitation Temperature Measurement in Liquid Electrode Plasma

Highly Sensitive Elemental Analysis for Cd and Pb by Liquid Electrode Plasma Atomic Emission Spectrometry with Quartz Glass Chip and Sample Flow

Determination of selenoamino acids by high-performance liquid chromatography-hydraulic high pressure nebulization-atomic fluorescence spectrometry

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