Investigation of chromatographic peak broadening in supercritical fluid chromatography/atmospheric pressure chemical ionization mass spectrometry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73599101" target="_blank" >RIV/61989592:15310/20:73599101 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/jssc.201901130" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/jssc.201901130</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/jssc.201901130" target="_blank" >10.1002/jssc.201901130</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of chromatographic peak broadening in supercritical fluid chromatography/atmospheric pressure chemical ionization mass spectrometry

Popis výsledku v původním jazyce

Multimode ionization source allows for switching between different ionization techniques, for example, electrospray and atmospheric pressure chemical ionization, within a single analysis. Supercritical fluid chromatography can handle a wide polarity range of substances from hydrophilic to lipophilic in a single run and can undoubtedly benefit from versatility of this ion source. Nevertheless, we observed a significant chromatographic peak broadening effect in atmospheric pressure chemical ionization mode during supercritical fluid chromatography-mass spectrometry analysis of volatile flavor compounds with a dual ion source named ESCi (Waters). Surprisingly, this effect was not related to the separation process but was triggered solely by the ion source conditions. Neither of photodiode array detector, electrospray mode nor a dedicated atmospheric pressure chemical ionization source suffered from such a phenomenon. Chromatographic peak profiles of ten test substances obtained with the dual ion source were compared with photodiode array detector data as a reference. The broadening effect was more pronounced for volatile compounds with low polarity. Dependence of peak broadening on the ion source settings was systematically investigated. Tuning of desolvation gas flow and its temperature dramatically reduced peak distortion and increased detection sensitivity.

Název v anglickém jazyce

Investigation of chromatographic peak broadening in supercritical fluid chromatography/atmospheric pressure chemical ionization mass spectrometry

Popis výsledku anglicky

Multimode ionization source allows for switching between different ionization techniques, for example, electrospray and atmospheric pressure chemical ionization, within a single analysis. Supercritical fluid chromatography can handle a wide polarity range of substances from hydrophilic to lipophilic in a single run and can undoubtedly benefit from versatility of this ion source. Nevertheless, we observed a significant chromatographic peak broadening effect in atmospheric pressure chemical ionization mode during supercritical fluid chromatography-mass spectrometry analysis of volatile flavor compounds with a dual ion source named ESCi (Waters). Surprisingly, this effect was not related to the separation process but was triggered solely by the ion source conditions. Neither of photodiode array detector, electrospray mode nor a dedicated atmospheric pressure chemical ionization source suffered from such a phenomenon. Chromatographic peak profiles of ten test substances obtained with the dual ion source were compared with photodiode array detector data as a reference. The broadening effect was more pronounced for volatile compounds with low polarity. Dependence of peak broadening on the ion source settings was systematically investigated. Tuning of desolvation gas flow and its temperature dramatically reduced peak distortion and increased detection sensitivity.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/EF16_019%2F0000754" target="_blank" >EF16_019/0000754: Nanotechnologie pro budoucnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF SEPARATION SCIENCE

ISSN

1615-9306

e-ISSN

—

Svazek periodika

43

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

1190-1194

Kód UT WoS článku

000520616200019

EID výsledku v databázi Scopus

2-s2.0-85077843600