Spectrophotometer

Spectrophotometers are used to measure the concentration of a known substance in a solution. They do this by passing a light through the substance and measuring light intensity as a function of wavelength. Either single beam or double beam spectrophotometers can be purchased. In a single beam spectrophotometer, a reference standard is used to measure light intensity before and after the sample is loaded. For double beam spectrophotometers the beam is split with one beam passing through the standard and the other through the sample to compare intensities. While single beam spectrophotometers are typically less expensive and have higher sensitivity, double beam spectrophotometers tend to be more stable and easier to use. Spectrophotometers are important pieces of equipment in chemistry, physics, biochemistry, clinical, and materials testing labs.

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CompanyAgilent TechnologiesAgilent Technologies
ItemCary 3500 Multicell UV-Vis SpectrophotometerCary 7000 Universal Measurement Spectrophotometer (UMS)
Citations
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Catalog NumberCary 3500 MulticellCary 7000
Price
TypeUV-Vis double beam spectrophotometerUniversal measurement spectrophotometer
Wavelength Range190 to 1100 nm175 to 3300 nm
Wavelength Accuracy± 0.2 nmUV-vis ± 0.08 nm,NIR ± 0.4 nm
Scanning SpeedUV-Vis 150,000 nm/minUV-Vis 2000 nm/min, NIR 8000 nm/min
Spectral Bandwidth0.1 to 5 nmUV-Vis 0.01 to 5.00 nm; NIR 0.04 to 20 nm
Optical SystemDouble out-of-plane Littrow monochromatorDouble out-of-plane Littrow monochromator
Light SourceXenon flash lampTungsten halogen visible and deuterium arc UV
Resolution0.1 nm limiting resolutionInquire
DescriptionThe Cary 3500 Multicell UV-Vis is a double-beam spectrophotometer offering new, unique measurement capabilities that can be deployed in regulated environments. The system simultaneously measures up to four independent temperature experiments across eight cuvette positions, with air-cooled Peltier ... Read MoreThe Agilent Cary 7000 universal measurement spectrophotometer (UMS) will satisfy all your solid sampling needs. Collect hundreds of UV-Vis-NIR spectra overnight or characterize optical components and thin films in minutes to hours rather than hours to days. The Cary 7000 UMS is a turn-key solution ... Read More
QuantityEAEA
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