In literature from ancient Rome there are complaints of foul air, while in 1273 the inhabitants of London were discussing the prohibition of coal burning to improve air quality. However, the measurement and analysis of aerosols only became established in the second half of the 19th century. In 1847 presented the first concept of particles in the air in his condensation nuclei experiment and his ideas were confirmed in later experiments by Coulier in 1875.
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The optical detector records the intensity of the light that reaches it as a function of its wavelength.
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For the investigation of liquid flows conductivity wire-mesh sensorswere firstly developed. They determine the local conductivity of a liquid in the cross-section of an investigation volume.
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The ARL iSpark 8860 Plus is based on Thermo Scientific's most trusted one-meter focal length, vacuum purged, PMT spectrometer with Paschen-Runge mounting. The spectrometer offers optimal resolution and stability and ensures outstanding performance for all the elements. The Thermo Scientific™ ARL™ iSpark 8860 Fire Assay Analyzer is a top of range spark OES specially tuned for the analysis of fire assay lead buttons. Have Questions? Traditional fire assay analysis is labor-intensive, expensive and environmentally harmful.
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This 8-ounce handheld spectrophotometer reads paint colors across multiple surfaces and lighting conditions, then wirelessly sends data to the Spectro App on your phone. You'll access fan deck libraries from major paint brands for instant color matching. State-of-the-art, real-time spectral performance and with rugged with wireless capabilities; ASD NIR spectrometers and spectroradiometers specialize in field-portable full-range UV/Vis/NIR/SWIR (350 nm - 2500 nm) for material identification and analysis. When you need to measure light quality, match colors, or identify materials in the field, you'll find five portable spectrometers that scientists rely on daily. Each device serves different purposes: some measure LED color temperature and brightness, others match paint shades, and a few handle.
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