PMID- 22799200
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20140702
LR  - 20161018
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 30
IP  - 4
DP  - 2012 Apr
TI  - Ion chromatographic separation of inorganic ions using a combination of 
      hydrophilic interaction chromatographic column and cation-exchange resin column.
PG  - 404-8
AB  - A combination of hydrophilic interaction chromatographic (HILIC) column and a 
      weakly acidic cation-exchange resin (WCX) column was used for simultaneous 
      separation of inorganic anions and cations by ion chromatography (IC). Firstly, 
      the capability of HILIC column for the separation of analyte ions was evaluated 
      under acidic eluent conditions. The columns used were SeQuant ZIC-HILIC 
      (ZIC-HILIC) with a sulfobetaine-zwitterion stationary phase (ZIC-HILIC) and 
      Acclaim HILIC-10 with a diol stationary phase (HILIC-10). When using tartaric 
      acid as the eluent, the HILIC columns indicated strong retentions for anions, 
      based on ion-pair interaction. Especially, HILIC-10 could strongly retain anions 
      compared with ZIC-HILIC. The selectivity for analyte anions of HILIC-10 with 5 
      mmol/L tartaric acid eluent was in the order of I(-) > NO3(-) > Br(-) > Cl(-) > 
      H2PO4(-). However, since HILIC-10 could not separate analyte cations, a WCX 
      column (TSKgel Super IC-A/C) was connected after the HILIC column in series. The 
      combination column system of HILIC and WCX columns could successfully separate 
      ten ions (Na+, NH4+, K+, Mg2+, Ca2+, H2PO4(-), Cl(-), Br(-), NO3(-) and I(-)) 
      with elution of 4 mmol/L tartaric acid plus 8 mmol/L 18-crown-6. The relative 
      standard deviations (RSDs) of analyte ions by the system were in the ranges of 
      0.02% - 0.05% in retention times and 0.18% - 5.3% in peak areas through 
      three-time successive injections. The limits of detection at signal-to-noise 
      ratio of 3 were 0.24 - 0.30 micromol/L for the cations and 0.31 - 1.2 micromol/L 
      for the anions. This system was applied for the simultaneous determination of the 
      cations and the anions in a vegetable juice sample with satisfactory results.
FAU - Arai, Kaori
AU  - Arai K
AD  - Graduate School of Engineering, Gunma University, Kiryu, Gunma 376-8515, Japan.
FAU - Mori, Masanobu
AU  - Mori M
FAU - Hironaga, Takahiro
AU  - Hironaga T
FAU - Itabashi, Hideyuki
AU  - Itabashi H
FAU - Tanaka, Kazuhiko
AU  - Tanaka K
LA  - eng
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
EDAT- 2012/07/18 06:00
MHDA- 2012/07/18 06:01
CRDT- 2012/07/18 06:00
PHST- 2012/07/18 06:00 [entrez]
PHST- 2012/07/18 06:00 [pubmed]
PHST- 2012/07/18 06:01 [medline]
PST - ppublish
SO  - Se Pu. 2012 Apr;30(4):404-8.