Abstract
The Grimm glow discharge lamp is a new type of a spectrochemical light source applicable to a wide range of analytical problems. Current conducting samples can be analysed as well as non-conducting samples if they are grounded and mixed together with a current conducting material, e.g. copper powder, and then formed into pellets. The precision of the analyses is high if a suitable technique of measuring is used. The calibration curves are linear in a wide range of concentrations. Matrix and interelement effects are small and in many cases not detectable. Therefore only a few standard samples or even one are needed in order to calibrate an analytical procedure. Because of the small width of the analytical lines the spectral apparatus must have a high resolution if one wants to make use of the full power of detection of the light source. Under such conditions the power of detection is comparable with that of a good spark method. Disadvantages of the light source are the rather low intensity and the restricted burning time.
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