Infra-red analysis apparatus and method

Details Infra-red analysis apparatus and method Infra-red analysis apparatus and method

1980-01-03

1981-12-01

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250341, 250347, 356440, G01J 100, G01N 2100

Patent

active

043038590

ABSTRACT:
The technique of attenuated total reflection (ATR) analysis can be applied to the deposit on a filter, enabling crystalline silica deposited on a glass fibre filter to be determined, which is impossible using transmission IR spectrophotometry. An improved ATR apparatus has pressure means to bring a sample such as that collected on a filter into contact with the prism and is arranged such that the face of the prism defines the area of the sample for analysis.

REFERENCES:
patent: 3460893 (1969-08-01), Wilks, Jr.
patent: 3770356 (1973-11-01), Kimura

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