A SIFT Study of Reactions of Positive and Negative Ions with Polyfluoroalkyl (PFAS) Molecules in Nitrogen

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10493225" target="_blank" >RIV/00216208:11320/24:10493225 - isvavai.cz</a>

Výsledek na webu

<a href="https://physics.mff.cuni.cz/wds/proc/pdf24/WDS24_23_f2_OmezzineGnioua.pdf" target="_blank" >https://physics.mff.cuni.cz/wds/proc/pdf24/WDS24_23_f2_OmezzineGnioua.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A SIFT Study of Reactions of Positive and Negative Ions with Polyfluoroalkyl (PFAS) Molecules in Nitrogen

Popis výsledku v původním jazyce

Kinetic data are required for SIFT-MS analysis of per- and polyfluoroalkylsubstances (PFAS), which persist in the environment and the human body and maycause adverse health effects. The new generation SIFT-MS instrument Voice200 series provides additional reagent ion selection by adding negative ions OH-, O2-., O-.,NO2-, and NO3- to the set of previously used H3O+, NO+, and O2+. ions. Understandingthe reactions of these ions with PFAS vapours is thus needed. Rate coefficients andproduct ion branching ratios were obtained for pentafluoropropionic acid, heptafluorobutyric acid, nonafluoro-1-hexanol, perfluoro-2-methyl-2-pentene, perfluorohexanoicacid, perfluoro(2-methyl-3-oxahexanoic) acid, tridecafluoro-1-octanol, and nonafluorobutane-1-sulfonic acid in dry and humid air introduced to SIFT-MS while allreagent ions were repeatedly injected in a sequence. The results indicate that the positive ion reaction products are affected by humidity while most of the negative ion reaction product ions remain stable and could potentially be used for SIFT-MS analysesof PFAS in different products and indoor and outdoor environments.

Název v anglickém jazyce

A SIFT Study of Reactions of Positive and Negative Ions with Polyfluoroalkyl (PFAS) Molecules in Nitrogen

Popis výsledku anglicky

Kinetic data are required for SIFT-MS analysis of per- and polyfluoroalkylsubstances (PFAS), which persist in the environment and the human body and maycause adverse health effects. The new generation SIFT-MS instrument Voice200 series provides additional reagent ion selection by adding negative ions OH-, O2-., O-.,NO2-, and NO3- to the set of previously used H3O+, NO+, and O2+. ions. Understandingthe reactions of these ions with PFAS vapours is thus needed. Rate coefficients andproduct ion branching ratios were obtained for pentafluoropropionic acid, heptafluorobutyric acid, nonafluoro-1-hexanol, perfluoro-2-methyl-2-pentene, perfluorohexanoicacid, perfluoro(2-methyl-3-oxahexanoic) acid, tridecafluoro-1-octanol, and nonafluorobutane-1-sulfonic acid in dry and humid air introduced to SIFT-MS while allreagent ions were repeatedly injected in a sequence. The results indicate that the positive ion reaction products are affected by humidity while most of the negative ion reaction product ions remain stable and could potentially be used for SIFT-MS analysesof PFAS in different products and indoor and outdoor environments.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

WDS&apos;24 Proceedings of Contributed Papers - Physics

ISBN

978-80-7378-520-8

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

164-171

Název nakladatele

Matfyzpress

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

4. 6. 2024

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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