| abstract |
A device for the measurement of chemical and/or biological samples, in particular by means of luminescence spectroscopy, comprises an irradiation unit (12), a sample receiver (10), at least one optical unit (30) and a detector unit (40). Electromagnetic radiation of various wavelength ranges and/or polarisations are led to the sample (10) from the irradiation unit (12). The colour marker in the sample (10), which contains at least one colour marker, is stimulated into producing luminescence and gives off light. The emitted light is led by means of an optical unit in the direction of an optical unit. The light emitted by the colour markers is detected by detectors (42,44,46, 48) in the detector unit. According to the invention, the measurement results may be improved on the irradiation unit (12) generating a pulsed irradiation. The irradiation unit is thus preferably controlled by a control unit (18) in such a way that the irradiation pulses impinge on the sample (10) in a temporal sequence. |