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™ Peltier Thermostatting AccessoriesEvolution™ One/One Plus UV-Vis SpectrophotometerEvolution™ Pro UV-Vis SpectrophotometerNicolet™ Summit™ X FTIR SpectrometerSPECTRONIC™ 200 Spectrophotometer
Citations
(1)
Catalog Number699-131100840-341400 / 840-341500840-340100 / 840-340200IQLAADGAAGFAQXMBNM840-281700 / 840-281800 / 840-281900
Price
TypeSingle Cell Peltier SystemUV-VisibleUV-VisibleInquireVisible
Wavelength RangeInquire190 to 1100 nm190 to 1100 nm8000 to 350 cm-1340 to 1000 nm
Wavelength AccuracyInquire± 0.8 nm (full range 190 to 1100 nm)± 0.30 nm, 190 to 900 nmInquire+/- 2 nm
Scanning SpeedInquire< 1 to 6000 nm/min< 1 to 6000 nm/min; variableInquireInquire
Spectral BandwidthInquireInquireSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nmInquire4 nm
Optical SystemInquireDouble BeamDouble beam with sample and reference cuvette/accessory positionsInquireSingle Beam
Light SourceInquireXenon flash lampXenon flash lampInquireTungsten-halogen
ResolutionInquireInquireInquireBetter than 0.6 cm-1Inquire
DescriptionTemperature 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 One/One Plus UV-Vis Spectrophotometer series offers real innovations that provide enhanced usability and performance - without added complexity. With Thermo Scientific ... 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 MoreInquireThe Thermo Scientific SPECTRONIC 200 is the standard for rugged, simple-to-use visible spectrophotometers for teaching applications. Designed expressly for the teaching laboratory, the SPECTRONIC 200 spectrophotometer includes a removable, washable sample compartment that simplifies spill cleanup ... Read More
QuantityEAEAEAInquireEA
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