Summary
A simple, inexpensive, on-column injector of the septum moving-needle kind is described for quantitative analysis using open-tubular columsn. when operated in the stopped-flow mode an improvement incolumn efficiency is observed combined wit a diminished tendency to produce split-top peaks, particularly for late eluting peaks. Using electronic integration a relative error of about 2.7% was observed for peaks spanning a wide range of sample concentrations and volatilities.
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Dedicated to Professor A. Zlatkis on the occastion of his 60th birthday.
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Pacholec, F., Poole, C.F. On-column injection in the stopped-flow mode with open-tubular columns. Chromatographia 18, 234–238 (1984). https://doi.org/10.1007/BF02270556
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DOI: https://doi.org/10.1007/BF02270556