A miniaturized cryogenic trap design for collection of arsanes

Svoboda, Milan; Kratzer, Jan; Vobecký, Miloslav; Dědina, Jiřı́

doi:10.1016/j.sab.2015.06.014

Cited by 9 publications

(6 citation statements)

References 33 publications

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“…A dryer tube packed with solid NaOH was employed in this work to study the effect of moisture and aerosol on arsane signal in both DBD and MMQTA atomizers. Its performance has been already demonstrated in previous studies with MMQTA 17,19 showing efficient removal of spray droplets and vapor with no losses of arsane. The same observations with MMQTA were reproduced in this work.…”

Section: ■ Results and Discussionmentioning

confidence: 68%

Preconcentration and Atomization of Arsane in a Dielectric Barrier Discharge with Detection by Atomic Absorption Spectrometry

2016

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Atomization of arsane in a 17 W planar quartz dielectric barrier discharge (DBD) atomizer was optimized, and its performance was compared to that of a multiple microflame quartz tube atomizer (MMQTA) for atomic absorption spectrometry (AAS). Argon, at a flow rate of 60 mL min(-1), was the best DBD discharge gas. Free As atoms were also observed in the DBD with nitrogen, hydrogen, and helium discharge gases but not in air. A dryer tube filled with NaOH beads placed downstream from the gas-liquid separator to prevent residual aerosol and moisture transport to the atomizer was found to improve the response by 25%. Analytical figures of merit were comparable, reaching an identical sensitivity of 0.48 s ng (-1) As in both atomizers and limits of detection (LOD) of 0.15 ng mL(-1) As in MMQTA and 0.16 ng mL(-1) As in DBD, respectively. Compared to MMQTA, DBD provided 1 order of magnitude better resistance to interference from other hydride-forming elements (Sb, Se, and Bi). Atomization efficiency in DBD was estimated to be 100% of that reached in the MMQTA. A simple procedure of lossless in situ preconcentration of arsane was developed. Addition of 7 mL min(-1) O2 to the Ar plasma discharge resulted in a quantitative retention of arsane in the optical arm of the DBD atomizer. Complete analyte release and atomization was reached as soon as oxygen was switched off. Preconcentration efficiency of 100% was observed, allowing a decrease of the LOD to 0.01 ng mL(-1) As employing a 300 s preconcentration period.

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Section: ■ Results and Discussionmentioning

confidence: 68%

Preconcentration and Atomization of Arsane in a Dielectric Barrier Discharge with Detection by Atomic Absorption Spectrometry

2016

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“…Moreover, its preconcentration efficiency has been proven to reach 100% thus resulting in a robust procedure. 10 Complete arsane trapping followed by quantitative release of preconcentrated arsenic species was also reported in the case of cryotrapping 19 and in situ preconcentration in the DBD atomizer. 18 In contrast, preconcentration of As at the bare quartz surface reached a preconcentration efficiency of 50% only.…”

Section: Introductionmentioning

confidence: 79%

“…18 Also cryotrapping makes use of hydride preconcentration at quartz, providing the U-tube is not packed with any chromatographic lling. Using the cryotrapping approach, arsane trapping in a bare quartz U-shaped capillary was investigated 19 while a quartz U-tube packed with Chromosorb was utilized in another study. 20 Finally, a graphite rod placed upstream the MDF atomizer was also studied for arsane trapping as an alternative to in situ trapping in graphite furnace.…”

Section: Introductionmentioning

confidence: 99%

Ultratrace determination of arsenic by hydride generation atomic absorption spectrometry with preconcentration on gold nanoparticles

Oliveira

Svoboda

Benada

et al. 2022

J. Anal. At. Spectrom.

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“…An auxiliary gas channel serving for optional introduction of hydrogen gas into the atomizer (15 mL min –1 H 2 , 99.95%, SIAD Czech), not shown in the Figure S1C, was connected upstream of the cryogenic trap. The detailed design of the cryogenic trap and the operational procedure can be found in refs , and in Section S1 of the Supporting Information.…”

Section: Methodsmentioning

confidence: 99%

“…The detailed design of the cryogenic trap and the operational procedure can be found in refs. [26,27] and in Section S1 of Supporting Figure S1E, whereas Figure S1F shows connection of the QTA to single quadrupole ICP:MS. Operating conditions of both MS spectrometers are summarized in Table S2. See Section S1 of Supporting Information for further detailed description of these experiments.…”

Section: #$%# # and # !mentioning

confidence: 99%

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

et al. 2016

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Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Atomization of bismuthane in a novel dielectric barrier discharge: a mechanistic study Kratzer, Jan; Zelina, Ondřej; Svoboda, Milan; Sturgeon, Ralph E.; Mester, Zoltan; Dedina, Jiri NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca.

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A miniaturized cryogenic trap design for collection of arsanes

Cited by 9 publications

References 33 publications

Preconcentration and Atomization of Arsane in a Dielectric Barrier Discharge with Detection by Atomic Absorption Spectrometry

Preconcentration and Atomization of Arsane in a Dielectric Barrier Discharge with Detection by Atomic Absorption Spectrometry

Ultratrace determination of arsenic by hydride generation atomic absorption spectrometry with preconcentration on gold nanoparticles

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

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