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Development of Conductivity Cell and Suppressor for Capillary Column Ion Chromatography
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1999, v.12 no.2, pp.89-93
Pyo,
D., &
Kim,
H.
(1999). Development of Conductivity Cell and Suppressor for Capillary Column Ion Chromatography. Analytical Science and Technology, 12(2), 89-93.
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Abstract
In this study, conductivity cell and suppressor for micro-column ion chromatography were developed to analyze ions in small columns of samples. With a capillary column, the flow rate of the mobile phase is so small (usually <TEX>$5{\sim}20{\mu}L/min$</TEX>) that the usual conductivity cell can not be used. Therefore, we developed a new type of conductivity cell and suppressor which have small inner volumes. The conductivity cell was made with two Pt hypodermic needles (i.d. 0.010 mm) which are slightly separated (about <TEX>$2{\mu}m$</TEX>), and the suppressor was made of Nafion tubings. When several anions(fluoride, nitrite, nitrate, chlorate) were analyzed using developed conductivity cell and suppressor, a good chromatogram was obtained.
- keywords
- capillary column, ion chromatography, conductivity cell, suppressor
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