Abstract
In order to design the oscillator type radio frequency apparatus, favorable for the detection of elements on the chromatogram and for high frequency titration with K and Na in their chloride solutions extracted from the chromatogram, the present investigation dealts with the strength of initial oscillation of the apparatus and the construction of the detection pole. Moreover, the titration cell convenient to the treatment of small amount of test solution was devised. The detection pole designed here, had no response to ununiformity of the paper and could therefore detect fairly even as small as one microgram of K or Na. Since the titration cell was designed to enable to apply such small quality as about 10 ml. of test solution, the lower limit of the quality of K to be estimated was reduced to the extent of approximately 0.286 mg. The stability of the apparatus and the characteristics of the coil, made here, were so excellent, that even excessive addition of one or two drops over the end point could be early detected.
