A simple multifunctional valve for flow injection analysis |
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| Authors: | S. Storgaard Jørgensen Katrine Maria Petersen Lone Anette Hansen |
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| Affiliation: | Chemistry Department, Royal Veterinary and Agricultural University, 40, Throvaldsensvej, DK-1871 Copenhagen Denmark |
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| Abstract: | A simple and versatile pneumatically-operated two-layer rotary valve is described for simultaneous introduction of sample and diversion of analytical streams in flow injection analysis. Examples of application include valve configuration with time-controlled sample volume and with loop-controlled sample volumes in one or two loops; both configurations are useful in routine analyses of samples of highly varying analyte concentrations. The usefulness of the valve for ion-exchange preconcentration procedure is also demostrated. |
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