PMID- 11478661
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20011004
LR  - 20190822
IS  - 0003-2654 (Print)
IS  - 0003-2654 (Linking)
VI  - 126
IP  - 7
DP  - 2001 Jul
TI  - Successive non-suppressed ion chromatography of common cations and anions using 
      dual columns with single eluent.
PG  - 989-94
AB  - A successive non-suppressed ion chromatography (IC) system for the determination 
      of common cations (Na+, K+, Mg2+, Ca2+) and anions (Cl-, Br-, NO3-, SO4(2-)) was 
      developed, using two separation columns and a single eluent. 5-Sulfoisophthalic 
      acid eluent was very suitable for such separations with a commercially available 
      cation-exchange column for the mono- and di-valent cations and with an ODS column 
      coated with cetyltrimethylammonium for the anions. Both cations and anions were 
      detected with conductimetrically high sensitivity without any suppressor. After 
      injecting an aliquot of sample solution, the solvent front from the 
      cation-exchange column, including most of the anionic species, was firstly 
      accumulated into the additional 2 ml accumulation loop for 60 s, while the cation 
      IC was performed. Subsequently, the accumulated fraction was introduced into the 
      anion-exchange column and chromatographed. Relative standard deviations (RSDs) of 
      retention times and conductimetric area responses for common cations were within 
      6% and within 4%, respectively. The linear relationships between molar 
      concentration and detector response ranged from 0.01 to 1.00 mM with r2 of 0.9994 
      for Na+, 0.9992 for K+, 0.9993 for Mg2+, and 0.9988 for Ca2+. The successive 
      anion IC through the accumulating process was also quantitative, with 95% 
      recovery or over for each analyte. The linear ranges were between 0.01 and 1.00 
      mM with r2 of 0.9996 for Cl-, 0.9997 for Br-, 0.9993 for NO3-, and 0.9984 for 
      SO4(2-). The method was applied to the determination of common cations and anions 
      in several mineral waters and a hot spring water.
FAU - Yokoyama, Y
AU  - Yokoyama Y
AD  - Laboratory of Analytical Chemistry, Faculty of Engineering, Yokohama National 
      University, Hodogaya, Japan. yokyuk@ynu.ac.jp
FAU - Sawaguchi, N
AU  - Sawaguchi N
FAU - Sato, H
AU  - Sato H
LA  - eng
PT  - Journal Article
PL  - England
TA  - Analyst
JT  - The Analyst
JID - 0372652
EDAT- 2001/08/02 10:00
MHDA- 2001/08/02 10:01
CRDT- 2001/08/02 10:00
PHST- 2001/08/02 10:00 [pubmed]
PHST- 2001/08/02 10:01 [medline]
PHST- 2001/08/02 10:00 [entrez]
AID - 10.1039/b102350k [doi]
PST - ppublish
SO  - Analyst. 2001 Jul;126(7):989-94. doi: 10.1039/b102350k.