PMID- 28104235
OWN - NLM
STAT- MEDLINE
DCOM- 20170501
LR  - 20181221
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1485
DP  - 2017 Feb 17
TI  - Determination and quantification of cations in ionic liquids by capillary 
      electrophoresis-mass spectrometry.
PG  - 131-141
LID - S0021-9673(17)30087-0 [pii]
LID - 10.1016/j.chroma.2017.01.034 [doi]
AB  - In this study, a capillary electrophoresis (CE) method hyphenated to a 
      high-resolution mass spectrometer is presented to detect the cations in ionic 
      liquids (ILs) and their decomposition products. The investigated ILs were 
      1-methyl-1-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR(13)TFSI), 
      1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR(14)TFSI) 
      and 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (EMIM TFSI). 
      With this method, it was possible to achieve baseline separation of the 
      decomposition products from the main cations in short migration times. Because of 
      the successful baseline separation, it was also possible to quantify the main 
      cations in ILs, which were aged at room temperature and at 60 degrees C. Additionally, 
      the relative standard deviations (RSDs) for the concentrations of the main 
      cations investigated by CE and ion chromatography (IC) were given to compare the 
      both methods with each other. The concentrations were determined for the main 
      cations aged at different temperatures. Finally, the limits of detection (LOD) 
      and quantification (LOQ) were calculated for this method and compared to the IC 
      results. The LODs and LOQs for CE method was in the range of 0.3-2.1mg/kg and for 
      the IC method 34.9-455.2mg/kg. Therefore, more decomposition products of EMIM(+) 
      were determined by the CE method than by the IC method. In each investigated IL, 
      more decomposition products of the cations were detected at 60 degrees C compared to room 
      temperature. The PYR(14)(+) concentration decreased by 4 % at 60 degrees C, while 
      PYR(13)(+) and EMIM(+) decreased more than 10 % aged at 60 degrees C in contrast to the 
      sample which was aged at room temperature.
CI  - Copyright (c) 2017 Elsevier B.V. All rights reserved.
FAU - Pyschik, Marcelina
AU  - Pyschik M
AD  - University of Muenster, MEET Battery Research Center, Institute of Physical 
      Chemistry, Corrensstrasse 46, 48149 Munster, Germany.
FAU - Winter, Martin
AU  - Winter M
AD  - University of Muenster, MEET Battery Research Center, Institute of Physical 
      Chemistry, Corrensstrasse 46, 48149 Munster, Germany; Helmholtz Institute Munster, 
      IEK-12, Forschungszentrum Julich GmbH, Corrensstrasse 46, 48149 Munster, Germany.
FAU - Nowak, Sascha
AU  - Nowak S
AD  - University of Muenster, MEET Battery Research Center, Institute of Physical 
      Chemistry, Corrensstrasse 46, 48149 Munster, Germany. Electronic address: 
      sascha.nowak@uni-muenster.de.
LA  - eng
PT  - Journal Article
DEP - 20170113
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide)
RN  - 0 (Cations)
RN  - 0 (Imidazoles)
RN  - 0 (Ionic Liquids)
RN  - 0 (Onium Compounds)
RN  - 0 (Pyrrolidines)
RN  - 0 (Sulfonamides)
RN  - ZY00Z3I33N (1-butyl-1-methylpyrrolidinium)
SB  - IM
MH  - Cations
MH  - Electrophoresis, Capillary/methods
MH  - Imidazoles/*chemistry
MH  - Ionic Liquids/*chemistry
MH  - Limit of Detection
MH  - Mass Spectrometry/methods
MH  - Onium Compounds/*chemistry
MH  - Pyrrolidines/*chemistry
MH  - Sulfonamides/*chemistry
OTO - NOTNLM
OT  - Capillary electrophoresis
OT  - Investigation of cations
OT  - Ionic liquids
OT  - Quadrupole time-of-flight mass spectrometer
EDAT- 2017/01/21 06:00
MHDA- 2017/05/02 06:00
CRDT- 2017/01/21 06:00
PHST- 2016/11/09 00:00 [received]
PHST- 2017/01/06 00:00 [revised]
PHST- 2017/01/12 00:00 [accepted]
PHST- 2017/01/21 06:00 [pubmed]
PHST- 2017/05/02 06:00 [medline]
PHST- 2017/01/21 06:00 [entrez]
AID - S0021-9673(17)30087-0 [pii]
AID - 10.1016/j.chroma.2017.01.034 [doi]
PST - ppublish
SO  - J Chromatogr A. 2017 Feb 17;1485:131-141. doi: 10.1016/j.chroma.2017.01.034. Epub 
      2017 Jan 13.