David H Haffner Sr- Further demonstrating the capabilities of my homemade spectrometer is a calibration curve done on 2 stroke motor oil:
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CFL spectra (compact fluorescent light)
Graph showing cfl plot blue band at 436nm and green band at 547nm
correction curve showing calibration quality fit of 3, target is always a fit of "0" but alas, soooo...far away!
After upgrading the DVD grating this weekend I naturally had to run a series of tests to recheck alignment and resolution, so this is a great demonstration of what a homemade spectrometer can do!
Fluorescein study 6 sample concentrations :
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