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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CompanyThermo Fisher ScientificThermo Fisher ScientificThermo Fisher ScientificThermo Fisher ScientificThermo Fisher Scientific
ItemEvolution™ One/One Plus UV-Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesEvolution™ Pro UV-Vis SpectrophotometerGENESYS™ 140 Vis SpectrophotometerGENESYS™ 180 UV-Vis Spectrophotometer
Citations
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Catalog Number840-341400 / 840-341500699-131100840-340100 / 840-340200840-308000840-309000
Price
TypeUV-VisibleSingle Cell Peltier SystemUV-VisibleVisibleUV-Visible
Wavelength Range190 to 1100 nmInquire190 to 1100 nm325 nm to 1100 nm190 nm to 1100 nm
Wavelength Accuracy± 0.8 nm (full range 190 to 1100 nm)Inquire± 0.30 nm, 190 to 900 nm± 0.5 nm± 0.5 nm
Scanning Speed< 1 to 6000 nm/minInquire< 1 to 6000 nm/min; variableAutomatic – up to 1800 nm/minSlow, medium and fast - up to 1600 nm/min
Spectral BandwidthInquireInquireSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nm5 nm2 nm
Optical SystemDouble BeamInquireDouble beam with sample and reference cuvette/accessory positionsDual BeamDouble Beam
Light SourceXenon flash lampInquireXenon flash lampTungsten-Halogen (>1000 hours)Xenon Flash Lamp (>5 years typical, 3 years guaranteed)
ResolutionInquireInquireInquireInquireInquire
DescriptionFor routine, complex research and advanced applications, including current pharmaceopia compliance, the Thermo Scientific Evolution One/One Plus UV-Vis Spectrophotometer series offers real innovations that provide enhanced usability and performance - without added complexity. With Thermo Scientific ... Read MoreTemperature control and sample stirring are important for many UV-Visible analysis methods. Peltier thermostatted accessories outperform traditional heater/chiller units to deliver superior performance with compact integrated design, simple set-up, and fast, precise temperature control. Thermo ... Read MoreFor routine, complex research and advanced applications, including current pharmaceopia compliance, the Thermo Scientific Evolution Pro UV-Vis Spectrophotometer series brings together reliable, versatile hardware, a broad range of accessories, with easy-to-use, easy-to-learn Thermo Scientific ... Read MorePerform quantitative measurements in routine industrial QA/QC or university chemistry labs with the automated and network-ready Thermo Scientific™ GENESYS 140 Vis Spectrophotometers. Optimized for usability and performance, this platform features a high-resolution color touchscreen, Wi-Fi ... Read MorePerform high throughput quantitative UV-Vis measurements where a double beam is required as a reference cell position with the Thermo Scientific™ GENESYS™ 180 UV-Visible Spectrophotometer. Optimized for usability and performance, this platform features a high-resolution color touchscreen, Wi-Fi ... Read More
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