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™ Pro UV-Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesNanoDrop™ Lite Plus SpectrophotometerNicolet™ Apex FTIR SpectrometerSPECTRONIC™ 200 Spectrophotometer
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Catalog Number840-340100 / 840-340200699-131100NDLPLUSGL / NDPLUSPRGLIQLAADGAAGFARXMBNZ840-281700 / 840-281800 / 840-281900
Price
TypeUV-VisibleSingle Cell Peltier SystemUV-VisFTIR, LaboratoryVisible
Wavelength Range190 to 1100 nmInquire230 nm, 260 nm, 280 nmDepends on model340 to 1000 nm
Wavelength Accuracy± 0.30 nm, 190 to 900 nmInquire± 1 nmInquire+/- 2 nm
Scanning Speed< 1 to 6000 nm/min; variableInquire≤ 5 secondsInquireInquire
Spectral BandwidthSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nmInquireInquireInquire4 nm
Optical SystemDouble beam with sample and reference cuvette/accessory positionsInquire2048-element CMOS Linear Image SensorInquireSingle Beam
Light SourceXenon flash lampInquireLight emitting diodesInquireTungsten-halogen
ResolutionInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)Better than 0.25 cm -1Inquire
DescriptionFor 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 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 MoreThe Thermo Scientific NanoDrop Lite Plus Spectrophotometer is a compact, personal UV-Vis microvolume spectrophotometer that complements the full-featured NanoDrop One/OneC and NanoDrop Eight instruments. The NanoDrop Lite Plus is an affordable choice for fast, easy measurements, designed to deliver ... Read More

With the Thermo Scientific™ Nicolet™ Apex FTIR Spectrometer you will maximize efficiency, ensure accuracy, and achieve compliance. Are you ready to unleash the power of the Apex FTIR? Configure your FTIR to match the needs of your lab environment and the spectral range required with

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The 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
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