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™ Pro UV-Vis SpectrophotometerNanoDrop™ Lite Plus SpectrophotometerNicolet™ iS50 FTIR SpectrometerNicolet™ Summit™ X FTIR Spectrometer
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Catalog Number699-131100840-340100 / 840-340200NDLPLUSGL / NDPLUSPRGLIQLAADGAAGFANWMBBXIQLAADGAAGFAQXMBNM
Price
TypeSingle Cell Peltier SystemUV-VisibleUV-VisInquireInquire
Wavelength RangeInquire190 to 1100 nm230 nm, 260 nm, 280 nm15 to 27,000 cm-18000 to 350 cm-1
Wavelength AccuracyInquire± 0.30 nm, 190 to 900 nm± 1 nmInquireInquire
Scanning SpeedInquire< 1 to 6000 nm/min; variable≤ 5 secondsInquireInquire
Spectral BandwidthInquireSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nmInquireInquireInquire
Optical SystemInquireDouble beam with sample and reference cuvette/accessory positions2048-element CMOS Linear Image SensorInquireInquire
Light SourceInquireXenon flash lampLight emitting diodesInquireInquire
ResolutionInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)Better than 0.09 cm-1Better than 0.6 cm-1
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 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 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

Solve analytical challenges with ease using the Thermo Scientific™ Nicolet™ iS50 FTIR Spectrometer, featuring purpose-built accessories and integrated software — making it an all-in-one materials analysis workstation. Designed to be highly flexible, the Nicolet iS50 FTIR

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