PMID- 34213216 OWN - NLM STAT- MEDLINE DCOM- 20210716 LR - 20210716 IS - 1872-2059 (Electronic) IS - 1000-8713 (Linking) VI - 38 IP - 3 DP - 2020 Mar 8 TI - [Simultaneous determination of inorganic anions and cations in wine by capillary electrophoresis-indirect ultraviolet detection with ionic liquid as background electrolyte]. PG - 356-361 LID - 10.3724/SP.J.1123.2019.09010 [doi] AB - A novel method was developed for the simultaneous determination of inorganic anions (Cl(-), SO(4)(2-) and ClO(3)(-)) and cations (K(+), Ca(2+), Na(+), Mg(2+) and Li(+)) in wine by capillary electrophoresis-indirect ultraviolet detection (CE-UV) with dual-opposite end injection using 1-ethyl-3-methylimidazolium p-toluenesulfonate ([EMIm]TS) as the background electrolyte.[EMIm]TS acted as the running electrolyte and probe, generating the background signals for cations and anions under indirect UV light, consequently simplifying the electrophoretic medium. Under the optimal experimental conditions, baseline separation was achieved for the eight inorganic ions within 6.5 min. The linear ranges of the eight inorganic ions were 0.005-0.7 g/L, with correlation coefficients (R(2)) of 0.963-0.995. The limits of detection (LODs) were between 1.2 and 12.5 mg/L at a signal-to-noise ratio of 3 (S/N=3). Eight inorganic ions were detected in three different brands of wines obtained from supermarket. Good recoveries of 90.1%-110.5% at three spiked levels (0.05, 0.2 and 0.4 g/L) were achieved with a low relative standard deviations (RSDs) (n=5) of 1.1%-4.8%. The proposed method is robust and reliable for the sensitive and rapid analysis of the inorganic anions and cations, and it has potential in evaluating the quality of wine. FAU - Tian, Miaomiao AU - Tian M AD - Institute of Chemical and Industrial Bioengineering, Jilin Engineering Normal University, Changchun, 130052, China. FAU - Liu, Xin AU - Liu X AD - Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China. FAU - Yang, Li AU - Yang L AD - Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China. LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Anions) RN - 0 (Cations) RN - 0 (Electrolytes) RN - 0 (Ionic Liquids) SB - IM MH - *Anions/analysis MH - *Cations/analysis MH - Electrolytes MH - Electrophoresis, Capillary MH - *Food Analysis MH - Ionic Liquids MH - Ultraviolet Rays MH - *Wine/analysis OTO - NOTNLM OT - anions OT - capillary electrophoresis (CE) OT - cations OT - indirect ultraviolet detection OT - ionic liquids OT - wine EDAT- 2020/03/08 00:00 MHDA- 2021/07/17 06:00 CRDT- 2021/07/02 09:12 PHST- 2021/07/02 09:12 [entrez] PHST- 2020/03/08 00:00 [pubmed] PHST- 2021/07/17 06:00 [medline] AID - 10.3724/SP.J.1123.2019.09010 [doi] PST - ppublish SO - Se Pu. 2020 Mar 8;38(3):356-361. doi: 10.3724/SP.J.1123.2019.09010.