Eine einfache apparative Anordnung zur emissionsspektroskopischen 15N-Bestimmung im Mikromaßstab

A simple device for emission-spectroscopic ¹⁵N determination with photoelectric recording is described. The nitrogen is stimulated for light emission in glass tubes between capacitor plates of an oscillator circuit. The frequency is regulated to 13.9 MHz by means of a high frequency generator (DX-60, Heathkit) with an effective power of 15–20 W. The dispersion and detection of the emitted light is performed by a Zeiss Spectrophotometer PMQ II, used with a wave-length scanner and a recorder.