@Carol - At one time I worked on a project involving gas chromatography. It used a mercury light bulb on one end of a tubular sample chamber and optical detector on the other end. I don't remember the wave length of the mercury bulb, but it was chosen for its wavelength as it pertained to the gas being detected. The bulb was an MTBF issue, so I wanted to change the design to an appropriately chosen LED. Unfortunately, the only way to get it was to have them custom made, and we couldn't meet the minimum quantity demands, so the effort was dropped.
I can't help but wonder if all this new activity in the LED industry can bring this project back to life? What do you think, Carol?
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