Atomization of antimony hydride and in-situ preconcentration of
antimony in a dielectric barrier discharge atomizer: A
mechanistic study by laser induced fluorescence

J 2025

Atomization of antimony hydride and in-situ preconcentration of antimony in a dielectric barrier discharge atomizer: A mechanistic study by laser induced fluorescence

KHAN, Waseem; Pavel DVOŘÁK; Martina MRKVIČKOVÁ; Milan SVOBODA; Jan KRATZER et al.

Základní údaje

Originální název

Atomization of antimony hydride and in-situ preconcentration of antimony in a dielectric barrier discharge atomizer: A mechanistic study by laser induced fluorescence

Autoři

KHAN, Waseem; Pavel DVOŘÁK; Martina MRKVIČKOVÁ; Milan SVOBODA a Jan KRATZER

Vydání

Analytica Chimica Acta, Elsevier B.V. 2025, 0003-2670

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10406 Analytical chemistry

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 6.000 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Dielectric barrier discharge atomizer; Hydride generation; Antimony hydride; Laser induced fluorescence; Hydride preconcentration; Atomization mechanism

Štítky

14312030, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 9. 7. 2025 14:00, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Background: Dielectric barrier discharge (DBD) ambient plasma has been recently used as hydride atomizers for atomic absorption spectrometry (AAS). DBD performance in terms of sensitivity has been proven comparable with the most common hydride atomizer, heated quartz tube (QTA), for some analyte hydrides while being significantly worse for the others. Moreover, a simple approach to analyte hydride preconcentration directly in the DBD (in-situ) prior to AAS detection has been reported with preconcentration efficiency significantly analyte-dependent. Detailed insights into the mechanisms of analyte hydride atomization and preconcentration are thus essential to utilize the full potential of DBD atomizers in analytical routine. Results: Using SbH3 as a model analyte hydride and laser induced fluorescence (LIF) as a detector, absolute concentration of Sb free atoms was quantified and their spatial distribution in the DBD discharge was visualized. The atomization efficiency of SbH3 reaches (75 ± 20) % with homogeneous distribution of Sb free atoms in the whole DBD discharge area indicating long life of ground state free Sb atoms. In addition, the mechanisms of in-situ preconcentration of antimony in the DBD were investigated using LIF. The release of preconcentrated antimony from the inner quartz surface of the DBD walls was visualized and temporally resolved formation of free Sb atoms was acquired. Free atoms are firstly observed in the gas phase in the central part of the DBD, where they had been preconcentrated, having the character of a wave traveling towards the atomizer edges within approximately 2 s. Significance: Both, high atomization efficiency and long life of free Sb atoms found by LIF prove perfect compatibility of DBD atomizer with AAS detection. This agrees well with high sensitivity reached in DBD atomizer in AAS which is comparable to that achieved in QTA. In preconcentration mode, spatio-temporally resolved LIF measurements revealed analyte trapping in a narrow spot in the central part of the DBD and enabled to study the dynamics of its subsequent release.

Návaznosti

GF23-05974K, projekt VaV

Název: Všestranné plazmové zdroje a pokročilé přístupy ke zpracování signálu jako nové koncepty ve stopové prvkové analýze a atomové spektrometrii

Investor: Grantová agentura ČR, Všestranné plazmové zdroje a pokročilé přístupy ke zpracování signálu jako nové koncepty ve stopové prvkové analýze a atomové spektrometrii, Lead agentura

90239, velká výzkumná infrastruktura

Název: CEPLANT II

Citovat

KHAN, Waseem; Pavel DVOŘÁK; Martina MRKVIČKOVÁ; Milan SVOBODA a Jan KRATZER. Atomization of antimony hydride and in-situ preconcentration of antimony in a dielectric barrier discharge atomizer: A mechanistic study by laser induced fluorescence. Analytica Chimica Acta. Elsevier B.V., 2025, roč. 1347, April, s. 1-9. ISSN 0003-2670. Dostupné z: https://doi.org/10.1016/j.aca.2025.343787.

@article{2478438,
   author = {Khan, Waseem and Dvořák, Pavel and Mrkvičková, Martina and Svoboda, Milan and Kratzer, Jan},
   article_number = {April},
   doi = {https://doi.org/10.1016/j.aca.2025.343787},
   keywords = {Dielectric barrier discharge atomizer; Hydride generation; Antimony hydride; Laser induced fluorescence; Hydride preconcentration; Atomization mechanism},
   language = {eng},
   issn = {0003-2670},
   journal = {Analytica Chimica Acta},
   title = {Atomization of antimony hydride and in-situ preconcentration of antimony in a dielectric barrier discharge atomizer: A mechanistic study by laser induced fluorescence},
   url = {https://www.sciencedirect.com/science/article/pii/S0003267025001813},
   volume = {1347},
   year = {2025}
}

TY  - JOUR
ID  - 2478438
AU  - Khan, Waseem - Dvořák, Pavel - Mrkvičková, Martina - Svoboda, Milan - Kratzer, Jan
PY  - 2025
TI  - Atomization of antimony hydride and in-situ preconcentration of antimony in a dielectric barrier discharge atomizer: A mechanistic study by laser induced fluorescence
JF  - Analytica Chimica Acta
VL  - 1347
IS  - April
SP  - 1-9
EP  - 1-9
PB  - Elsevier B.V.
SN  - 00032670
KW  - Dielectric barrier discharge atomizer
KW  - Hydride generation
KW  - Antimony hydride
KW  - Laser induced fluorescence
KW  - Hydride preconcentration
KW  - Atomization mechanism
UR  - https://www.sciencedirect.com/science/article/pii/S0003267025001813
N2  - Background: Dielectric barrier discharge (DBD) ambient plasma has been recently used as hydride atomizers for atomic absorption spectrometry (AAS). DBD performance in terms of sensitivity has been proven comparable with the most common hydride atomizer, heated quartz tube (QTA), for some analyte hydrides while being significantly worse for the others. Moreover, a simple approach to analyte hydride preconcentration directly in the DBD (in-situ) prior to AAS detection has been reported with preconcentration efficiency significantly analyte-dependent. Detailed insights into the mechanisms of analyte hydride atomization and preconcentration are thus essential to utilize the full potential of DBD atomizers in analytical routine. Results: Using SbH3 as a model analyte hydride and laser induced fluorescence (LIF) as a detector, absolute concentration of Sb free atoms was quantified and their spatial distribution in the DBD discharge was visualized. The atomization efficiency of SbH3 reaches (75 ± 20) % with homogeneous distribution of Sb free atoms in the whole DBD discharge area indicating long life of ground state free Sb atoms. In addition, the mechanisms of in-situ preconcentration of antimony in the DBD were investigated using LIF. The release of preconcentrated antimony from the inner quartz surface of the DBD walls was visualized and temporally resolved formation of free Sb atoms was acquired. Free atoms are firstly observed in the gas phase in the central part of the DBD, where they had been preconcentrated, having the character of a wave traveling towards the atomizer edges within approximately 2 s. Significance: Both, high atomization efficiency and long life of free Sb atoms found by LIF prove perfect compatibility of DBD atomizer with AAS detection. This agrees well with high sensitivity reached in DBD atomizer in AAS which is comparable to that achieved in QTA. In preconcentration mode, spatio-temporally resolved LIF measurements revealed analyte trapping in a narrow spot in the central part of the DBD and enabled to study the dynamics of its subsequent release.
ER  -

KHAN, Waseem; Pavel DVOŘÁK; Martina MRKVIČKOVÁ; Milan SVOBODA a Jan KRATZER. Atomization of antimony hydride and in-situ preconcentration of antimony in a dielectric barrier discharge atomizer: A mechanistic study by laser induced fluorescence. \textit{Analytica Chimica Acta}. Elsevier B.V., 2025, roč.~1347, April, s.~1-9. ISSN~0003-2670. Dostupné z: https://doi.org/10.1016/j.aca.2025.343787.

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