the light pipes filter film 10 stops when the residue area is between extractors 35 and 36 to permit extraction of the test sample which may contain a plurality of biological cells such as those of certain microorganisms when ultrasonic extraction is selected as the more effective means of disruption of cells of microorganisms of certain species transducer 35 radiates ultrasonic energy which is transmitted through the coupling liquid to the residue on face a of filter film 10 under ultrasonic oscillation disruption of microbial cells occurs releasing the adenosinetriphosphate compound which reacts with the firefly enzyme when they come in contact between the photo detectors when chemicl extraction is selected an activator 38 operates a spray valve 37 connected to an aerosol container not shown by a hose 39 valve 37 sprays a fine mist of liquid solution such as butanol dimethyl sulfoxide acetone or other extracting liquid through a guide funnel 36 filter film 10 travels over a guiding roller 40 and transports the residue between the lightpipes 12 and 13 for reaction process the lightpipes are coupled to the photocathodes of the photomultipliers with mineral oil silicon oil canada balsam or other similar liquid to insure good optical.