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
ItemNanoDrop™ Ultra SpectrophotometerEvolution™ Pro UV-Vis SpectrophotometerGENESYS™ 40 Vis SpectrophotometerNicolet™ Summit™ OA FTIR SpectrometerNicolet™ Summit™ X FTIR Spectrometer
Citations
(2)
Catalog NumberNDULTRAGL840-340100 / 840-340200840-297000IQLAADGAAGFAQXMBMLIQLAADGAAGFAQXMBNM
Price
TypeMicrovolume UV-Vis SpectrophotometerUV-VisibleVisibleFTIR, LaboratoryInquire
Wavelength Range190 to 850 nm190 to 1100 nm325 nm to 1100 nm6000 to 650 cm-18000 to 350 cm-1
Wavelength Accuracy± 1 nm± 0.30 nm, 190 to 900 nm± 0.5 nmInquireInquire
Scanning SpeedInquire< 1 to 6000 nm/min; variableAutomatic – up to 1800 nm/minInquireInquire
Spectral Bandwidth1.8 nmSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nm5 nmInquireInquire
Optical System2048-element CMOS Linear Image SensorDouble beam with sample and reference cuvette/accessory positionsDual BeamInquireInquire
Light SourceXenon FlashXenon flash lampTungsten-Halogen (>1000 hours)InquireInquire
ResolutionInquireInquireInquireInquireBetter than 0.6 cm-1
DescriptionThe Thermo Scientific™ NanoDrop™ Ultra Spectrophotometer and Fluorometer empowers scientists to quantify and assess nucleic acids and proteins with enhanced precision, speed, and reliability.For 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 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 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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