> >In general THERE IS NOTHING WRONG WITH MEASURING PEAK HEIGHTS Indeed. To contribute an eye-catcher I took the liberty to attach an illustration: the signal of a single particle (chain-forming phytoplankton colony of about 240 micrometers in length) flowing through the 5 micrometer laser beam in our 'flow phytometer'. Green = forward scatter; red = auto-fluorescence; blue = side scatter. We digitize all preamp outputs at 4MHz, and store that as raw data to do various kinds of analysis (including signal integration). The large particle shown represents roughly 2 kbyte data - but these are relatively less abundant in natural waters - normally we have about 100 kbyte/1000 particles. Best wishes, George Dubelaar
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