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Transverse optical transmission probe
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Multipass cell for gas analysis using a coherent optical source
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Multipass sampling system for Raman spectroscopy
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Method and apparatus for sealing an optical window in a spectroscopic measuring device
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Small diameter diffuse reflectance probe
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Optical beam switching device
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Fiber-optic coupled diffuse reflectance probe
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Bi-layer attenuated total reflectance device providing optimized absorbance linearity
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Method of ensuring accurate identification and measurement of solutes
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Probe for liquid sample analysis by light transmission
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Immersion probe for infrared internal reflectance spectroscopy
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Analysis of liquid-carried impurities by means of sparging
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Liquid quality analysis system combining sparging and an infrared gas cell
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Immersion probe for infrared internal reflectance spectroscopy
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Gas sample analysis provided by light pipe radiation structure
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Light pipe system having maximum radiation throughput
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Apparatus and method for normal incidence reflectance spectroscopy
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Internal reflectance cell having improved sample flow geometry
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