Abstract

This paper describs further applications of electrostatic discharge currents in paper chrornatography. The swing of a mirror galvanometer due to the discharge of a condenser through various solution concentrations is employed to obtain rapid approximate determinations of tlie milligram content of spots and zones. The circuit is illustrated together with details of the micro-conductimctric lube. A chart is given also showing the relationship between galvo deflections and the content of any spot. It is suggested that the circuit provides a rapid method for ascertaining the purity of water, alcohol and other liquids. Finiilly a new method for dispensing micro quantities of any solute is described.

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