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Anal Bioanal Chem. 2017 Mar;409(9):2471-2475. doi: 10.1007/s00216-017-0196-y. Epub 2017 Feb 07.

A flow microslot NMR probe coupled with a capillary isotachophoresis system exhibits improved properties compared to solenoid designs.

Analytical and bioanalytical chemistry

Mikheil Gogiashvili, Ahmad Telfah, Jörg Lambert, Roland Hergenröder

Affiliations

  1. Leibniz Institut für Analytische Wissenschaften - ISAS e.V., Postfach 101352, 44013, Dortmund, Germany.
  2. Leibniz Institut für Analytische Wissenschaften - ISAS e.V., Postfach 101352, 44013, Dortmund, Germany. [email protected].

PMID: 28175935 DOI: 10.1007/s00216-017-0196-y

Abstract

We report on the hyphenation of capillary isotachophoresis (cITP) separations with online nuclear magnetic resonance (NMR) detection using a planar microslot waveguide probe design. While cITP is commonly coupled with a solenoidal microcoil NMR probe, the structural information provided is limited by broad resonances and poor spectral resolution due to the magnetic field created by the separation current. The microslot probe design described herein allows the separation capillary to be oriented parallel to the static magnetic field, B

Keywords: Isotachophoresis; Microslot; NMR; Online hyphenation

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