Abstract: The invention refers to a photoelectric detector device to be used in the atomic absorption spectroscopy. This device is characterized by a photo semiconductor array having a plurality of photo semiconductor devices and a read-out means for jointly reading out the charges generated in the photo semiconductor devices of any continuous portion in the photo semiconductor array by means of impingement of radiation, and for generating electric signals corresponding to the read-out charges.

Abstract: The invention relates to an atomic absorption spectrometer, comprising a measuring light path leading from at least one light source emitting line radiation corresponding to at least one element to be detected, through an atomization means for atomizing a sample containing the element to be detected, to a detection means, and a reference light path leading from each light source to the detection means. The invention is characterized in that a beam splitting means is provided such that a first component of the line radiation of each light source is guidable via the measuring light path and a second component of the line radiation of each light source is simultaneously guidable via the reference light path.