Abstract
The need has been felt in this laboratory for a simple apparatus capable of recording eluate concentrations by chemical means. The main features of an apparatus made for this purpose are: a syringe to force the solution through the adsorption column, from which a flexible canula and a capillary-drop tip convey the eluate to a rotating metal drum, on which a filter paper is fastened. The drop tip is pushed along the lowest generatrice of the cylinder and at regular intervals lifted up to the paper, where a drop of the eluate is deposited. The device for this lifting (not shown in Fig. 1) is operated from a cog-wheel on the left end of the drum. Syringe, drum and drop tip are driven synchronously by an electric motor through a system of cog-wheels and threadworms.
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References
Stein and Moore ., lecture at the American Chemical Society Congress, April 1942 (not yet published).
Claesson (Diss.), Arkiv f. kemi, Min. och Geol, 23 A, No. 1 (1946).
Strain, âœChromatographic Adsorption Analysisâ (New York, 1942).
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For references, see, for example, Cannan, Ann. New York Acad. Sci., 47, Art. 2, 150 (1946).
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DRAKE, B. A New Adsorption Apparatus and the Separation of Aspartic and Glutamic Acid. Nature 160, 602–603 (1947). https://doi.org/10.1038/160602a0
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DOI: https://doi.org/10.1038/160602a0
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