Styrene radical cations for chemical ionization mass spectrometry analyses of monoterpene hydrocarbons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F19%3A00511994" target="_blank" >RIV/61388955:_____/19:00511994 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0302222" target="_blank" >http://hdl.handle.net/11104/0302222</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/rcm.8556" target="_blank" >10.1002/rcm.8556</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Styrene radical cations for chemical ionization mass spectrometry analyses of monoterpene hydrocarbons

Popis výsledku v původním jazyce

RationalenMonoterpene hydrocarbons play an important role in the formation of secondary aerosol particles and in atmospheric chemistry. Thus, there is a demand to measure their individual concentrations in situ in real time. Currently, only the total concentration of monoterpenes C10H16 can be determined by chemical ionization mass spectrometry techniques using reagent ions H3O+, NO+ and (C6H6)n+• without gas chromatographic separation.nMethodsnThe styrene cation C8H8+• was investigated as a reagent for chemical ionization of monoterpenes. The modified selected ion flow drift tube, SIFDT, technique was used to characterize the differences in product ion distributions between α‐phellandrene, α‐pinene, γ‐terpinene, β‐pinene, ocimene, sabinene, 3‐carene, (R)‐limonene, camphene and myrcene.nResultsnThe monoterpene molecular cation C10H16+• is the main product (about 90%) for all isomers except (R)‐limonene and camphene with an efficient channel of C8H8+•C10H16 adduct formation and γ‐terpinene with unexpectedly significant product ions at m/z 134 and 135 corresponding to losses of H2 and H.nConclusionsnUtilization of the styrene cation for the ionization of monoterpenes is beneficial due to the very low fragmentation of the product ions. Specific association product ions for camphene and (R)‐limonene and fragment product ions for γ‐terpinene allow them to be distinguished from other isomers that produce mostly the molecular cation.n

Název v anglickém jazyce

Styrene radical cations for chemical ionization mass spectrometry analyses of monoterpene hydrocarbons

Popis výsledku anglicky

RationalenMonoterpene hydrocarbons play an important role in the formation of secondary aerosol particles and in atmospheric chemistry. Thus, there is a demand to measure their individual concentrations in situ in real time. Currently, only the total concentration of monoterpenes C10H16 can be determined by chemical ionization mass spectrometry techniques using reagent ions H3O+, NO+ and (C6H6)n+• without gas chromatographic separation.nMethodsnThe styrene cation C8H8+• was investigated as a reagent for chemical ionization of monoterpenes. The modified selected ion flow drift tube, SIFDT, technique was used to characterize the differences in product ion distributions between α‐phellandrene, α‐pinene, γ‐terpinene, β‐pinene, ocimene, sabinene, 3‐carene, (R)‐limonene, camphene and myrcene.nResultsnThe monoterpene molecular cation C10H16+• is the main product (about 90%) for all isomers except (R)‐limonene and camphene with an efficient channel of C8H8+•C10H16 adduct formation and γ‐terpinene with unexpectedly significant product ions at m/z 134 and 135 corresponding to losses of H2 and H.nConclusionsnUtilization of the styrene cation for the ionization of monoterpenes is beneficial due to the very low fragmentation of the product ions. Specific association product ions for camphene and (R)‐limonene and fragment product ions for γ‐terpinene allow them to be distinguished from other isomers that produce mostly the molecular cation.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GJ17-13157Y" target="_blank" >GJ17-13157Y: Metody hmotnostní spektrometrie založené na iontové chemii pro rychlé stanovení biogenních těkavých organických látek vedoucích k znečištění atmosféry</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Rapid Communications in Mass Spectrometry

ISSN

0951-4198

e-ISSN

—

Svazek periodika

33

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

1870-1876

Kód UT WoS článku

000498298900003

EID výsledku v databázi Scopus

2-s2.0-85075518760