Spectrophotometer purge apparatus

Details Spectrophotometer purge apparatus Spectrophotometer purge apparatus

1983-03-04

1986-06-24

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

220 221, 356319, 356244, G01J 302

Patent

active

045964629

ABSTRACT:
Spectrophotometer purge apparatus comprising a sample compartment including a plurality of walls defining a first sample purge volume. The apparatus may further include a volume reducing wall and fastening means for removably fixing the volume reducing wall within the sample compartment to thereby define a second sample purge volume smaller than the first sample purge volume. A purge gas inlet introduces purge gas into the sample purge volumes. Further the apparatus may comprise a movable partition forming one of the plurality of walls and the volume reducing wall. In such an embodiment, the fastening means may further include means for removably fixing the movable partition to thereby define the first sample purge volume. The apparatus advantageously enables the sample purge volume to be adjusted as required to thereby optimize purge efficiency in a spectrophotometer.

REFERENCES:
patent: 2020373 (1935-11-01), Petzold, Jr.
patent: 3899252 (1975-08-01), Dimeff
patent: 4081100 (1978-03-01), Presby
patent: 4322165 (1982-03-01), Ellebracht et al.
patent: 4436215 (1984-03-01), Kleinert et al.
Helms et al., Spectrochimica Acta., vol. 19, 1963, pp. 819-828.
"Beam Condenser for IR-4200", Beckman Instructions 015-555357, Oct. 1976.

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