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
ItemNicolet™ iS50 FTIR SpectrometerEvolution™ Pro UV-Vis SpectrophotometerGENESYS™ 50 UV-Vis SpectrophotometerNanoDrop™ Ultra SpectrophotometerSPECTRONIC™ 200 Spectrophotometer
Citations
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Catalog NumberIQLAADGAAGFANWMBBX840-340100 / 840-340200840-298000NDULTRAGL840-281700 / 840-281800 / 840-281900
Price
TypeInquireUV-VisibleUV-VisibleMicrovolume UV-Vis SpectrophotometerVisible
Wavelength Range15 to 27,000 cm-1190 to 1100 nm190 nm to 1100 nm190 to 850 nm340 to 1000 nm
Wavelength AccuracyInquire± 0.30 nm, 190 to 900 nm±0.5 nm± 1 nm+/- 2 nm
Scanning SpeedInquire< 1 to 6000 nm/min; variableSlow, medium and fast - up to 1600 nm/minInquireInquire
Spectral BandwidthInquireSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nm2 nm1.8 nm4 nm
Optical SystemInquireDouble beam with sample and reference cuvette/accessory positionsDual Beam2048-element CMOS Linear Image SensorSingle Beam
Light SourceInquireXenon flash lampXenon Flash Lamp (>5 years typical, 3 years guaranteed)Xenon FlashTungsten-halogen
ResolutionBetter than 0.09 cm-1InquireInquireInquireInquire
Description

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

... Read More
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™ 50 UV-Visible Spectrophotometer. Offered in a single cell configuration, this instrument is designed with a sloping surface to shed spills and a washable sampling ... 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 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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