The invention relates to a method and a device for carrying out emission
spectroscopy, in particular laser emission spectroscopy. According to
said method, a pulsed laser beam is automatically focussed on a workpiece
to generate a laser-induced plasma, the radiation emitted from the plasma
is detected and an elemental analysis is performed using the captured
radiation spectrum. The invention is characterised in that a laser beam
impingement is carried out with a variable pulse interval .DELTA.T, that
prior to the plasma generation, additional geometric parameters P1, P2 .
. . PN of a potential measurement location on the workpiece surface, in
addition to the distance d of the autofocus lens from said workpiece
surface are determined and in that an elemental analysis is only
performed for the potential measurement locations, at which at least one
of the additional geometric parameters lies within a predefined tolerance
range [T1 . . . T2].