Spectrophotometer with near infrared radiation sensor having an

Details Spectrophotometer with near infrared radiation sensor having an Spectrophotometer with near infrared radiation sensor having an

1990-02-15

1991-08-20

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

25037015, G01J 520

Patent

active

050417274

ABSTRACT:
The invention relates to a spectrophotometer having a light source capable of alternatively producing near infrared radiation and another radiation other than the near infrared radiation, a dispersing section for dispersing radiation from the light source to provide substantially monochromatic radiation so that a sample is irradiated with the substantially monochromatic radiation to thereby provide sample radiation, and a sensing section for sensing the sample radiation. The sample radiation is subjected to energy absorption of a specific wavelength by the sample. The sensing section includes a first sensing unit having a near infrared radiation sensor, a second sensing unit having a visible/ultraviolet radiation sensor and a temperature control unit for holding the near infrared radiation sensor at a substantially constant temperature lower than the room temperature.

REFERENCES:
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Degen et al., "A Method of Trapping GC Fractions for Vibrational Spectroscopic Identification", Laboratory Practice, vol. 25, No. 11, pp. 767-768 (Nov. 1976), Publisher: United Trade Press Ltd.

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