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 TechnologiesAgilent TechnologiesAgilent TechnologiesAgilent Technologies
ItemCary 4000 UV-Vis SpectrophotometerCary 3500 Compact UV-Vis SpectrophotometerCary 3500 Flexible UV-Vis SpectrophotometerCary 5000 UV-Vis-NIR SpectrophotometerCary 7000 Universal Measurement Spectrophotometer (UMS)
Citations
Reviews
Catalog Number10079200Cary 3500 CompactCary 3500 Flexible10079300Cary 7000
Price
TypeUV-VisUV-Vis double beam spectrophotometerUV-Vis double beam spectrophotometerUV-VIS-NIRUniversal measurement spectrophotometer
Wavelength Range175 to 900 nm190 to 1100 nm190 to 1100 nm175 to 3300 nm175 to 3300 nm
Wavelength AccuracyInquire± 0.2 nm± 0.2 nmInquireUV-vis ± 0.08 nm,NIR ± 0.4 nm
Scanning SpeedUV-Vis 2,000 nm/minUV-Vis 150,000 nm/minUV-Vis 150,000 nm/minUV-Vis 2000 nm/min; NIR 8000 nm/minUV-Vis 2000 nm/min, NIR 8000 nm/min
Spectral BandwidthUV-Vis 0.01 - 5.00 nm0.1 to 5 nm0.1 to 5 nmDown to 0.01 nmUV-Vis 0.01 to 5.00 nm; NIR 0.04 to 20 nm
Optical SystemDouble BeamDouble out-of-plane Littrow monochromatorDouble out-of-plane Littrow monochromatorDouble BeamDouble out-of-plane Littrow monochromator
Light SourceTungsten halogen visible and deuterium arc UVXenon flash lampXenon flash lampTungsten halogen visible and deuterium arc UVTungsten halogen visible and deuterium arc UV
ResolutionInquire0.1 nm limiting resolution0.1 nm limiting resolutionInquireInquire
DescriptionThe Cary 4000 is a high-end UV-Vis spectrometer with excellent photometric performance in the 175–900 nm range, making it a powerful reference spectrometer. The system is ideal for analyzing solid samples or biotechnology samples with minimal sample preparation.

Controlled by the Cary WinUV software,
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The Cary 3500 Compact UV-Vis is a double-beam spectrophotometer featuring new and unique measurement capabilities that can be deployed in regulated environments. The system performs ambient and temperature-controlled experiments with air-cooled Peltier temperature control, and it accurately analyzes... Read MoreThe Cary 3500 Flexible UV-Vis is a double-beam spectrophotometer with superior photometric performance—for challenging measurements with minimal sample preparation—that can be deployed in regulated environments. The system offers a uniquely large sample compartment with a small footprint for ... Read MoreThe Cary 5000 is a high-performance UV-Vis and NIR spectrophotometer with superb photometric performance in the 175–3300 nm range. Using a PbSmart detector, the Cary 5000 extends its NIR range to 3300 nm making it a powerful tool for materials science research. The Cary WinUV software, a modular ... 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
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