发明授权
US5091642A Colorimetric detection apparatus 失效
比色检测装置

Colorimetric detection apparatus
摘要:
A monitor for the detection of a target gas by sensing the color change of a colorimetric indicator material. The monitor includes a light detector positioned and having a surface oriented to receive light reflected from the colorimetric indicator material and a light source positioned between the colorimetric indicator material and the light detector and oriented to provide illumination to the colorimetric indicator material but not to the light detector.
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