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Summary: Sample Concentration and Separation for
Nanoliter-Volume NMR Spectroscopy Using
Capillary Isotachophoresis
Roger A. Kautz, Michael E. Lacey,,§ Andrew M. Wolters,,§
Frantisek Foret,
Andrew G. Webb,§,
Barry L. Karger,*,
and
Jonathan V. Sweedler*,,§
Barnett Institute of Chemical and Biological Analysis
Northeastern UniVersity, Boston, Massachusetts 02115
Department of Chemistry, Beckman Institute, and
Department of Electrical and Computer Engineering
UniVersity of Illinois at Urbana-Champaign
Urbana, Illinois 61801
ReceiVed August 18, 2000
ReVised Manuscript ReceiVed February 1, 2001
Full characterization of trace level analytes in complex mixtures
is vital to diverse areas such as cellular analysis, natural product
extraction, and combinatorial chemistry. Since nuclear magnetic
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