Atomization of Bismuthane in a Dielectric Barrier Discharge: A Mechanistic Study

Kratzer, Jan; Zelina, Ondřej; Svoboda, Milan; Sturgeon, Ralph E.; Mester, Zoltán; Dědina, Jiřı́

doi:10.1021/acs.analchem.5b04095

Cited by 29 publications

(23 citation statements)

References 40 publications

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“…On the other hand, Kratzer et al found that some memory effects occurred to DBD as an atomizer for bismuthane in the presence of oxygen admixed with argon discharge gas. Moreover, their recent work demonstrated that the DBD atomizer could be employed to trap bismuth on the surface of quartz in the presence of high level selenium, arsenic, and antimony hydrides. Compared with those GPE methods using the heated graphite furnace , or quartz tube, − the DBD trapping device could consume less energy due to no electrical heating process, such as only <20 W in this work.…”

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confidence: 99%

Ambient-Temperature Trap/Release of Arsenic by Dielectric Barrier Discharge and Its Application to Ultratrace Arsenic Determination in Surface Water Followed by Atomic Fluorescence Spectrometry

Mao

Huang

et al. 2016

Anal. Chem.

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A novel dielectric barrier discharge reactor (DBDR) was utilized to trap/release arsenic coupled to hydride generation atomic fluorescence spectrometry (HG-AFS). On the DBD principle, the precise and accurate control of trap/release procedures was fulfilled at ambient temperature, and an analytical method was established for ultratrace arsenic in real samples. Moreover, the effects of voltage, oxygen, hydrogen, and water vapor on trapping and releasing arsenic by DBDR were investigated. For trapping, arsenic could be completely trapped in DBDR at 40 mL/min of O2 input mixed with 600 mL/min Ar carrier gas and 9.2 kV discharge potential; prior to release, the Ar carrier gas input should be changed from the upstream gas liquid separator (GLS) to the downstream GLS and kept for 180 s to eliminate possible water vapor interference; for arsenic release, O2 was replaced by 200 mL/min H2 and discharge potential was adjusted to 9.5 kV. Under optimized conditions, arsenic could be detected as low as 1.0 ng/L with an 8-fold enrichment factor; the linearity of calibration reached R(2) > 0.995 in the 0.05 μg/L-5 μg/L range. The mean spiked recoveries for tap, river, lake, and seawater samples were 98% to 103%; and the measured values of the CRMs including GSB-Z50004-200431, GBW08605, and GBW(E)080390 were in good agreement with the certified values. These findings proved the feasibility of DBDR as an arsenic preconcentration tool for atomic spectrometric instrumentation and arsenic recycling in industrial waste gas discharge.

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confidence: 99%

Ambient-Temperature Trap/Release of Arsenic by Dielectric Barrier Discharge and Its Application to Ultratrace Arsenic Determination in Surface Water Followed by Atomic Fluorescence Spectrometry

Mao

Huang

et al. 2016

Anal. Chem.

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“…Unlike a previous study, more than 75% of arsenic could be released from the in situ DBD tube at 0 mL/min H 2 , due to possible H 2 introduction from the mixed H 2 –Ar shield gas. During arsenic releasing, H 2 might play an essential role in supplying H radicals for As atomization or ionization …”

Section: Resultsmentioning

confidence: 99%

“…The absolute analytical sensitivity of the previous DBD-AFS/AAS was compromised by unsatisfactory half peak width and the residual analyte in rear nondischarge area of the DBD set. , After optimization of the in situ DBD trap, the half peak width of the in situ DBD trap was compared with that of the original DBD in Figure and Table . The in situ DBD trap presented a sharper peak of 0.3 s from 5 ng of arsenic vs those of HG-AFS (1.3 s) and HG-DBDR-AFS (1.2 s) systems from 20 ng of arsenic with similar peak heights.…”

Section: Resultsmentioning

confidence: 99%

“…Arsine was introduced into the DBD tube and oxidized under an O 2 − Ar atmosphere, and then the arsenic oxides were trapped mainly on the discharge area. During the releasing cycle, H 2 produced a large number of H radicals and other reactive particles, 34 thereby arsenic was atomized to remove it from the quartz surface. Next, free As atoms collided forming clusters, 33 which were transported to the H 2 flame to be atomized and excited.…”

Section: Analytical Chemistrymentioning

confidence: 99%

“…During arsenic releasing, H 2 might play an essential role in supplying H radicals for As atomization or ionization. 34 Comparison of the Half Peak Width among Different Designs. The absolute analytical sensitivity of the previous DBD-AFS/AAS was compromised by unsatisfactory half peak width and the residual analyte in rear nondischarge area of the DBD set.…”

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confidence: 99%

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In Situ Dielectric Barrier Discharge Trap for Ultrasensitive Arsenic Determination by Atomic Fluorescence Spectrometry

Mao

Liu

et al. 2018

Anal. Chem.

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The mechanisms of arsenic gas phase enrichment (GPE) by dielectric barrier discharge (DBD) was investigated via X-ray photoelectron spectroscopy (XPS), in situ fiber optic spectrometer (FOS), etc. It proved for the first time that the arsenic species during DBD trapping, release, and transportation to the atomic fluorescence spectrometer (AFS) are probably oxides, free atoms, and atom clusters, respectively. Accordingly, a novel in situ DBD trap as a GPE approach was redesigned using three-concentric quartz tube design and a modified gas line system. After trapping by O at 9.2 kV, sweeping for 180 s, and releasing by H at 9.5 kV, 2.8 pg detection limit (LOD) was achieved without extra preconcentration (sampling volume = 2 mL) as well as 4-fold enhancement in absolute sensitivity and ∼10 s sampling time. The linearity reached R > 0.998 in the 0.1-8 μg/L range. The mean spiked recoveries for tap, river, lake, and seawater samples were 100-106%; and the measurements of the certified reference materials (CRMs) were in good agreement with the certified values. In situ DBD trap is also suitable to atomic absorption spectrometry (AAS) or optical emission spectrometry (OES) for fast and on-site determination of multielements.

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A mass spectrometric study of hydride generated arsenic species identified by direct analysis in real time (DART) following cryotrapping

et al. 2021

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Atomization of Bismuthane in a Dielectric Barrier Discharge: A Mechanistic Study

Cited by 29 publications

References 40 publications

Ambient-Temperature Trap/Release of Arsenic by Dielectric Barrier Discharge and Its Application to Ultratrace Arsenic Determination in Surface Water Followed by Atomic Fluorescence Spectrometry

Ambient-Temperature Trap/Release of Arsenic by Dielectric Barrier Discharge and Its Application to Ultratrace Arsenic Determination in Surface Water Followed by Atomic Fluorescence Spectrometry

In Situ Dielectric Barrier Discharge Trap for Ultrasensitive Arsenic Determination by Atomic Fluorescence Spectrometry

A mass spectrometric study of hydride generated arsenic species identified by direct analysis in real time (DART) following cryotrapping

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