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In this work, a new purpose‐made portable CE instrument with a contactless conductivity detector was used for the determination of degradation products of nitrogen mustards in different water samples. The capillary was coated with poly(1‐vinylpyrrolidone‐co‐2‐dimethylaminoethyl methacrylate) to avoid analyte‐wall interactions. The coating procedure was studied to obtain the best repeatability of the...
The use of a quaternary amine-coated capillary in the separation of alkali and alkaline earth cations yielded a decisively better resolution than is possible with a conventional fused-silica capillary. Improved resolution is required in particular when sample solutions contain small amounts of cations in the presence of others with much higher concentrations. The determination of, for example, Mg...
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