application of the laser pulse to the liquid surface are focused by a second lens 18 at the entrance of fiber optic 20 the light is guided by fiber optic to the spectrometer 22 which will be described in more detail later detection signals generated by a photodiode array or a ccd camera or pms photomultipliers of a detection portion 7 of the spectrometer are supplied to a delay generator of the computer control processing unit 24 for processing and treatment of data and for the evaluation of the data to determine the concentration of various elements within the liquid a blower 26 is located just above the flow cell 5 it prevents the debris particles or drops of liquid generated by the laser pulse focused on the sample from reaching the quartz window 28 by blowing air perpendicular to the laser beam it also clears aerosols formed by the laser pulse from the path of the laser beam which enables laser pulses to reach the sample without being absorbed by these aerosols 0038 fig2 shows a more detailed lateral view of the flow cell as schematically illustrated in this figure the reservoir 2 is fed by a flow of liquid coming from the pump 31 or from the liquid stream of the process to be analyzed the velocity of.