Bausch & Lomb Spectronic 20
Item Number:
1374
Manufacturer:
Model:
Spectronic 20
Condition:
Used
Power Supply:
115 V, 0.3 A, 60 Hz
Specifications:
The Bausch and Lomb Spectronic 20 spectrophotometer is a line-operated single-beam instrument. Radiation from the source (a tungsten filament lamp) is dispersed by a replica grating, and the desired wavelength is focused upon an exit slit. The emergent beam passes through the cell compartment; that portion which is not absorbed is measured by a phototube. The response of the phototube is recorded in terms of transmittance (upper scale) or of absorbance (lower scale).
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