Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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21/00
Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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G01N21/62
Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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G01N21/64
Fluorescence; Phosphorescence
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G01N21/6428
Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
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G01N2021/6439
with indicators, stains, dyes, tags, labels, marks
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