Detail publikace

Gravity-flow open tubular cation chromatography

KUBÁŇ, P. PELCOVÁ, P. KUBÁŇ, V. KLAKURKOVÁ, L. PURNENDU K., D.

Originální název

Gravity-flow open tubular cation chromatography

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

We describe ion chromatography (IC) on open tubular cation exchange columns with a controllable capacity multilayered stationary phase architecture. The columns of relatively large bore (75 lm id) are fabricated by coating fused-silica capillaries with multiple layers of poly(butadiene-maleic acid) (PBMA) copolymer and crosslinking the deposited layers by thermally initiated radical polymerisation. Column capacity increases in a predictable manner with increase in the number of successively coated layers. Gravity flow with a modest head (a2 m) can provide the desired separations within a reasonable period. We provide a minimalist configuration where no suppression is used, the sample is injected hydrodynamically as in CE, and detection is accomplished by an inexpensive homebuilt contactless conductivity detector or a capacitance to voltage digital converter. A 1 m long 75 lm bore column coated with two layers of PBMA allows gravity-flow open tubular IC to separate four alkali cations in a10 min with a 1 mM tartaric acid (TA) eluent. Simultaneous separation of alkali and alkaline earth metal cations can be accomplished in less than 25 min using 1.75 mM pyridinedicarboxylic acid as an eluent. Contactless conductometric detection (C4D) allows LODs down to 150 nmol/L, corresponding to 30 fmol injections. Analysis of real water samples is demonstrated.

Klíčová slova

Cations ; Contactless conductometric detection; Gravity-flow; Open tubular ion chromatography

Autoři

KUBÁŇ, P.; PELCOVÁ, P.; KUBÁŇ, V.; KLAKURKOVÁ, L.; PURNENDU K., D.

Rok RIV

2008

Vydáno

20. 8. 2008

Nakladatel

WILEY-VCH Verlag GmbH&Co. KGaA

Místo

Weinheim, DE

ISSN

1615-9306

Periodikum

Journal of Separation Science

Ročník

2008

Číslo

31

Stát

Spolková republika Německo

Strany od

2745

Strany do

2753

Strany počet

9

BibTex

@article{BUT47036,
  author="Petr {Kubáň} and Pavlína {Pelcová} and Vlastimil {Kubáň} and Lenka {Klakurková} and Dasgupta {Purnendu K.}",
  title="Gravity-flow open tubular cation chromatography",
  journal="Journal of Separation Science",
  year="2008",
  volume="2008",
  number="31",
  pages="2745--2753",
  issn="1615-9306"
}