The use of conical precolumns in chromatographic analysis

Integrated chromatographic sample preconcentration was introduced in the early seventies. Since then on-line enrichment of dilute solutions by this technique has become common practice in many analytical laboratories. It has proved to be a straightforward alternative to off-line sample work-up proce...

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Bibliographic Details
Published in:TrAC, Trends in analytical chemistry (Regular ed.) Trends in analytical chemistry (Regular ed.), 1987-05, Vol.6 (5), p.134-138
Main Authors: Ruijten, Henry M., van Amsterdam, Peter H., de Bree, Hans
Format: Article
Language:English
Subjects:
Analysis
Biological and medical sciences
General pharmacology
Medical sciences
Pharmacology. Drug treatments
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Summary:Integrated chromatographic sample preconcentration was introduced in the early seventies. Since then on-line enrichment of dilute solutions by this technique has become common practice in many analytical laboratories. It has proved to be a straightforward alternative to off-line sample work-up procedures. Although cylindrical precolumns may be appropriate for moderate sample volumes containing small quantities of solutes, we propose the use of conically shaped precolumns which have a larger capacity.
ISSN:0165-9936
1879-3142
DOI:10.1016/0165-9936(87)87056-5