PMID- 21046792
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20120213
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 28
IP  - 7
DP  - 2010 Jul
TI  - [Simultaneous determination of trifluoroacetate, tetrafluoroborate and halide 
      ions in ionic liquid by ion chromatography].
PG  - 708-11
AB  - A method was developed for the simultaneous determination of trifluoroacetate, 
      tetrafluoroborate and halide ions (FF-, Cl-, Br-) by ion chromatography with 
      direct conductivity detection. The chromatographic separation was performed on a 
      Shim-pack IC-A3 anion-exchange column with potassium biphthalate, phthalic acid + 
      tris (hydroxymethyl) -aminomethane, and p-hydroxybenzoic acid + tris 
      (hydroxymethyl) -aminomethane + boric acid as eluent, separately. The effects of 
      the nature of eluent, eluent concentration, acetonitrile concentration and column 
      temperature on the separation and the retention factors of the anions were 
      investigated. The optimized chromatographic conditions for the determination of 
      the anions were as follows: 1.2 mmol/L potassium biphthalate as eluent, a column 
      temperature of 45 degrees C and a flow rate of 1.0 mL/min. Under the optimal 
      conditions, the anions were baseline separated. Moreover, the symmetries of peaks 
      were better. The limits of detection (S/N = 3) for the anions were in the range 
      of 0.01 - 0.50 mg/L. The relative standard deviations (RSDs) of the 
      chromatographic retention time and peak area for the anions were not more than 
      0.2% and 1.2% (n = 5), respectively. The method has been applied to the 
      determination of trifluoroacetate, tetrafluoroborate and halide ions in ionic 
      liquids. The spiked recoveries of the anions were from 98.0% to 103.2%. The 
      method is simple, accurate and reliable, and has better practicability.
FAU - Li, Siwen
AU  - Li S
AD  - College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 
      150025, China.
FAU - Zhang, Xiaodong
AU  - Zhang X
FAU - Yu, Hong
AU  - Yu H
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
EDAT- 2010/11/05 06:00
MHDA- 2010/11/05 06:01
CRDT- 2010/11/05 06:00
PHST- 2010/11/05 06:00 [entrez]
PHST- 2010/11/05 06:00 [pubmed]
PHST- 2010/11/05 06:01 [medline]
AID - 10.3724/sp.j.1123.2010.00708 [doi]
PST - ppublish
SO  - Se Pu. 2010 Jul;28(7):708-11. doi: 10.3724/sp.j.1123.2010.00708.