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.

Find, compare, and request a quote for spectrophotometers across leading suppliers at Labcompare; including access to product citations, related published figures, and first-hand reviews from our scientific community.

CompanyThermo Fisher ScientificThermo Fisher ScientificThermo Fisher ScientificThermo Fisher ScientificThermo Fisher Scientific
ItemGENESYS™ 50 UV-Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesEvolution™ Pro UV-Vis SpectrophotometerGENESYS™ 40 Vis SpectrophotometerNanoDrop™ Ultra Spectrophotometer
Citations
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Catalog Number840-298000699-131100840-340100 / 840-340200840-297000NDULTRAGL
Price
TypeUV-VisibleSingle Cell Peltier SystemUV-VisibleVisibleMicrovolume UV-Vis Spectrophotometer
Wavelength Range190 nm to 1100 nmInquire190 to 1100 nm325 nm to 1100 nm190 to 850 nm
Wavelength Accuracy±0.5 nmInquire± 0.30 nm, 190 to 900 nm± 0.5 nm± 1 nm
Scanning SpeedSlow, medium and fast - up to 1600 nm/minInquire< 1 to 6000 nm/min; variableAutomatic – up to 1800 nm/minInquire
Spectral Bandwidth2 nmInquireSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nm5 nm1.8 nm
Optical SystemDual BeamInquireDouble beam with sample and reference cuvette/accessory positionsDual Beam2048-element CMOS Linear Image Sensor
Light SourceXenon Flash Lamp (>5 years typical, 3 years guaranteed)InquireXenon flash lampTungsten-Halogen (>1000 hours)Xenon Flash
ResolutionInquireInquireInquireInquireInquire
DescriptionPerform 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 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 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 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.
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