PMID- 27770453 OWN - NLM STAT- MEDLINE DCOM- 20170929 LR - 20180412 IS - 1522-2683 (Electronic) IS - 0173-0835 (Linking) VI - 38 IP - 3-4 DP - 2017 Feb TI - Capillary electrophoresis with contactless conductivity detection for the quantification of fluoride in lithium ion battery electrolytes and in ionic liquids-A comparison to the results gained with a fluoride ion-selective electrode. PG - 533-539 LID - 10.1002/elps.201600361 [doi] AB - In this study, an optimized method using capillary electrophoresis (CE) with a direct contactless conductivity detector (C(4) D) for a new application field is presented for the quantification of fluoride in common used lithium ion battery (LIB) electrolyte using LiPF(6) in organic carbonate solvents and in ionic liquids (ILs) after contacted to Li metal. The method development for finding the right buffer and the suitable CE conditions for the quantification of fluoride was investigated. The results of the concentration of fluoride in different LIB electrolyte samples were compared to the results from the ion-selective electrode (ISE). The relative standard deviations (RSDs) and recovery rates for fluoride were obtained with a very high accuracy in both methods. The results of the fluoride concentration in the LIB electrolytes were in very good agreement for both methods. In addition, the limit of detection (LOD) and limit of quantification (LOQ) values were determined for the CE method. The CE method has been applied also for the quantification of fluoride in ILs. In the fresh IL sample, the concentration of fluoride was under the LOD. Another sample of the IL mixed with Li metal has been investigated as well. It was possible to quantify the fluoride concentration in this sample. CI - (c) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Pyschik, Marcelina AU - Pyschik M AD - University of Muenster, MEET Battery Research Center, Institute of Physical Chemistry, Munster, Germany. FAU - Klein-Hitpass, Marcel AU - Klein-Hitpass M AD - University of Muenster, MEET Battery Research Center, Institute of Physical Chemistry, Munster, Germany. FAU - Girod, Sabrina AU - Girod S AD - University of Muenster, MEET Battery Research Center, Institute of Physical Chemistry, Munster, Germany. FAU - Winter, Martin AU - Winter M AD - University of Muenster, MEET Battery Research Center, Institute of Physical Chemistry, Munster, Germany. AD - Helmholtz Institute Munster, IEK-12, Forschungszentrum Julich, Munster, Germany. FAU - Nowak, Sascha AU - Nowak S AD - University of Muenster, MEET Battery Research Center, Institute of Physical Chemistry, Munster, Germany. LA - eng PT - Journal Article DEP - 20161115 PL - Germany TA - Electrophoresis JT - Electrophoresis JID - 8204476 RN - 0 (Electrolytes) RN - 0 (Ionic Liquids) RN - 9FN79X2M3F (Lithium) RN - Q80VPU408O (Fluorides) SB - IM MH - Electric Conductivity MH - Electric Power Supplies MH - Electrolytes/*chemistry MH - Electrophoresis, Capillary/instrumentation/*methods MH - Fluorides/*analysis MH - Ion-Selective Electrodes MH - Ionic Liquids/*chemistry MH - Limit of Detection MH - Lithium MH - Reproducibility of Results OTO - NOTNLM OT - Capillary electrophoresis OT - Contactless conductivity detector OT - Fluoride quantification OT - Ionic liquids OT - Lithium ion battery electrolytes EDAT- 2016/10/23 06:00 MHDA- 2017/09/30 06:00 CRDT- 2016/10/23 06:00 PHST- 2016/08/03 00:00 [received] PHST- 2016/10/18 00:00 [revised] PHST- 2016/10/19 00:00 [accepted] PHST- 2016/10/23 06:00 [pubmed] PHST- 2017/09/30 06:00 [medline] PHST- 2016/10/23 06:00 [entrez] AID - 10.1002/elps.201600361 [doi] PST - ppublish SO - Electrophoresis. 2017 Feb;38(3-4):533-539. doi: 10.1002/elps.201600361. Epub 2016 Nov 15.