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™ Peltier Thermostatting AccessoriesGENESYS™ 40 Vis SpectrophotometerNanoDrop™ Ultra SpectrophotometerNicolet™ Summit™ OA FTIR Spectrometer
Citations
(2)
Catalog Number840-281700 / 840-281800 / 840-281900699-131100840-297000NDULTRAGLIQLAADGAAGFAQXMBML
Price
TypeVisibleSingle Cell Peltier SystemVisibleMicrovolume UV-Vis SpectrophotometerFTIR, Laboratory
Wavelength Range340 to 1000 nmInquire325 nm to 1100 nm190 to 850 nm6000 to 650 cm-1
Wavelength Accuracy+/- 2 nmInquire± 0.5 nm± 1 nmInquire
Scanning SpeedInquireInquireAutomatic – up to 1800 nm/minInquireInquire
Spectral Bandwidth4 nmInquire5 nm1.8 nmInquire
Optical SystemSingle BeamInquireDual Beam2048-element CMOS Linear Image SensorInquire
Light SourceTungsten-halogenInquireTungsten-Halogen (>1000 hours)Xenon FlashInquire
ResolutionInquireInquireInquireInquireInquire
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 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 MorePerform 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 MoreThe Thermo Scientific™ NanoDrop™ Ultra Spectrophotometer and Fluorometer empowers scientists to quantify and assess nucleic acids and proteins with enhanced precision, speed, and reliability.

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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