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
ItemGENESYS™ 40 Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesEvolution™ Pro UV-Vis SpectrophotometerNicolet™ Summit™ OA FTIR SpectrometerNicolet™ Summit™ X FTIR Spectrometer
Citations
(2)
Catalog Number840-297000699-131100840-340100 / 840-340200IQLAADGAAGFAQXMBMLIQLAADGAAGFAQXMBNM
Price
TypeVisibleSingle Cell Peltier SystemUV-VisibleFTIR, LaboratoryInquire
Wavelength Range325 nm to 1100 nmInquire190 to 1100 nm6000 to 650 cm-18000 to 350 cm-1
Wavelength Accuracy± 0.5 nmInquire± 0.30 nm, 190 to 900 nmInquireInquire
Scanning SpeedAutomatic – up to 1800 nm/minInquire< 1 to 6000 nm/min; variableInquireInquire
Spectral Bandwidth5 nmInquireSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nmInquireInquire
Optical SystemDual BeamInquireDouble beam with sample and reference cuvette/accessory positionsInquireInquire
Light SourceTungsten-Halogen (>1000 hours)InquireXenon flash lampInquireInquire
ResolutionInquireInquireInquireInquireBetter than 0.6 cm-1
DescriptionPerform routine measurements for quality control or teaching in the chemistry classroom with the rugged Thermo Scientific™ GENESYS 40 Vis Spectrophotometer. Offered in a single cell configuration, this insrtrument is designed with a sloping surface to shed spills and a washable sampling compartment... 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 More

The Nicolet Summit OA FTIR Spectrometer is a dedicated analyzer for rapid characterization of oils, liquids, syrups, and pastes samples. An integrated zinc selenide (ZnSe) horizontal attenuated total reflectance (HATR) accessory delivers constant and reproducible pathlength, ideal for both

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