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
ItemSPECTRONIC™ 200 SpectrophotometerEvolution™ Pro UV-Vis SpectrophotometerNanoDrop™ Lite Plus SpectrophotometerNicolet™ Summit™ OA FTIR SpectrometerNicolet™ Summit™ X FTIR Spectrometer
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Catalog Number840-281700 / 840-281800 / 840-281900840-340100 / 840-340200NDLPLUSGL / NDPLUSPRGLIQLAADGAAGFAQXMBMLIQLAADGAAGFAQXMBNM
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TypeVisibleUV-VisibleUV-VisFTIR, LaboratoryInquire
Wavelength Range340 to 1000 nm190 to 1100 nm230 nm, 260 nm, 280 nm6000 to 650 cm-18000 to 350 cm-1
Wavelength Accuracy+/- 2 nm± 0.30 nm, 190 to 900 nm± 1 nmInquireInquire
Scanning SpeedInquire< 1 to 6000 nm/min; variable≤ 5 secondsInquireInquire
Spectral Bandwidth4 nmSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nmInquireInquireInquire
Optical SystemSingle BeamDouble beam with sample and reference cuvette/accessory positions2048-element CMOS Linear Image SensorInquireInquire
Light SourceTungsten-halogenXenon flash lampLight emitting diodesInquireInquire
ResolutionInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)InquireBetter than 0.6 cm-1
DescriptionThe 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 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

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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