Atomization of arsenic hydride in a planar dielectric barrier discharge: Behavior of As atoms studied by temporally and spatially resolved optical emission spectrometry

Burhenn, Sebastian; Kratzer, Jan; Klute, Felix David; Dědina, Jiřı́; Franzke, Joachim

doi:10.1016/j.sab.2018.12.006

Cited by 15 publications

(3 citation statements)

References 24 publications

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“…The difference in the inuence amplitude may be due to the difference in the physical structure of Ar and He discharges, where the Ar plasma is a dense and constricted lamentary discharge and the He plasma is much more homogenous. 24 The variation trend of the AES signal is similar to that of T exc and n e , which may be important reasons for the changes in the AES signal. It is worth mentioning that combining this system with other diagnostic approaches in the future, such as the transition rate diagrams reported by Weiss et al, [25][26][27] may provide a clearer description of the excitation processes.…”

Section: Inuence Of the Doped Gas On Plasma Physical Propertiesmentioning

confidence: 69%

A simultaneous atomic absorption and emission spectrometer with dielectric barrier discharge for atomization and excitation

Lin

Deng

et al. 2022

J. Anal. At. Spectrom.

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Section: Inuence Of the Doped Gas On Plasma Physical Propertiesmentioning

confidence: 69%

A simultaneous atomic absorption and emission spectrometer with dielectric barrier discharge for atomization and excitation

Lin

Deng

et al. 2022

J. Anal. At. Spectrom.

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“…However, the necessity of high temperature during this process would complicate instrumental design and limit its applicability. To overcome this weakness, DBD quartz devices with an in situ / ex situ concentric tube , or planar plate structure were fabricated to couple with HG-AFS or HG-AAS for arsenic trap/release; thereafter, sensitivity enhancement by more than one order of magnitude can be achieved under ambient temperature. Obviously, DBD plasma gains simplicity, cost, and energy consumption advantages and achieves a higher degree in instrumental miniaturization vs heated QTA trap.…”

Section: Introductionmentioning

confidence: 99%

Novel Dielectric Barrier Discharge Trap for Arsenic Introduced by Electrothermal Vaporization: Possible Mechanism and Its Application

Huang²,

Chen

et al. 2021

Anal. Chem.

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In this work, a novel integrated dielectric barrier discharge (IDBD) reactor coupled to an electrothermal vaporizer (ETV) was established for arsenic determination. It is for the first time gas-phase enrichment (GPE) was fulfilled based on the hyphenation of ETV and DBD. The mechanisms of evolution of arsenic atomic and molecular species during vaporization, transportation, trapping, and release processes were investigated via X-ray photoelectron spectroscopy (XPS) and other approaches. Tentative mechanisms were deduced as follows: the newly designed DBD atomizer (DBDA) tube upstream to the air inlet fulfills the atomization of arsenic nanoparticles in vaporized aerosol, leading to free arsenic atoms that are indispensable for forming arsenic oxides; the DBD trap (DBDT) tube traps arsenic oxides under an O 2 -domininating atmosphere and then releases arsenic atoms under H 2 -dominating atmospheres. In essence, this process is a physical−chemical process rather than an electrostatic particle deposition. Such a trap and release sequence separates matrix interference and enhances analytical sensitivity. Under the optimized conditions, the method detection limit (LOD) was 0.04 mg/kg and the relative standard deviations (RSDs) were within 6% for As standard solution and real seafood samples, indicating adequate analytical sensitivity and precision. The mean spiked recoveries for laver, kelp, and Undaria pinnatifida samples were 95−110%, and the results of the certified reference materials (CRMs) were consistent with certified values. This ETV-DBD preconcentration scheme is easy and green and has low cost for As analysis in seafood samples. DBD was proved a novel ETV transportation enhancement and preconcentration technique for arsenic, revealing its potential in rapid arsenic analysis based on direct solid sampling ETV instrumentation.

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“…AAS for detection, has become popular over the last few years. Burhenn et al 42 Burhenn studied the atomisation mechanism of AsH 3 in a planar DBD using temporally and spatially resolved OES. They observed maximum emission from As (at 228.8 nm) 235 and 285 ns after plasma ignition for helium and argon DBDs respectively.…”

Section: Sample Introductionmentioning

confidence: 99%

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

Evans

Pisonero

Smith

et al. 2020

J. Anal. At. Spectrom.

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Atomization of arsenic hydride in a planar dielectric barrier discharge: Behavior of As atoms studied by temporally and spatially resolved optical emission spectrometry

Cited by 15 publications

References 24 publications

A simultaneous atomic absorption and emission spectrometer with dielectric barrier discharge for atomization and excitation

A simultaneous atomic absorption and emission spectrometer with dielectric barrier discharge for atomization and excitation

Novel Dielectric Barrier Discharge Trap for Arsenic Introduced by Electrothermal Vaporization: Possible Mechanism and Its Application

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

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