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
ItemEvolution™ Peltier Thermostatting AccessoriesEvolution™ Pro UV-Vis SpectrophotometerGENESYS™ 40 Vis SpectrophotometerGENESYS™ 50 UV-Vis SpectrophotometerNanoDrop™ Eight Spectrophotometer
Citations
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Catalog Number699-131100840-340100 / 840-340200840-297000840-298000NDE-GL / NDEIGHT-LAPTOP / NDEIGHT-E1PIP / NDEIGHT-PIP
Price
TypeSingle Cell Peltier SystemUV-VisibleVisibleUV-VisibleUV VIS Spectrophotometer
Wavelength RangeInquire190 to 1100 nm325 nm to 1100 nm190 nm to 1100 nm190 to 850 nm
Wavelength AccuracyInquire± 0.30 nm, 190 to 900 nm± 0.5 nm±0.5 nm± 1 nm
Scanning SpeedInquire< 1 to 6000 nm/min; variableAutomatic – up to 1800 nm/minSlow, medium and fast - up to 1600 nm/min8 samples in < 20 sec
Spectral BandwidthInquireSelectable 0.5, 1.0, 1.5, 2.0, 4.0 nm5 nm2 nm< 1.8 nm
Optical SystemInquireDouble beam with sample and reference cuvette/accessory positionsDual BeamDual Beam2048-element CMOS linear image sensor
Light SourceInquireXenon flash lampTungsten-Halogen (>1000 hours)Xenon Flash Lamp (>5 years typical, 3 years guaranteed)Xenon flash lamp
ResolutionInquireInquireInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)
DescriptionTemperature 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 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 MoreIncrease the chances of success in your analyses with efficient analysis of your sample quantity and quality using the Thermo Scientific™ NanoDrop™ Eight UV-Vis spectrophotometer. Ideal for pharma/biotech and academic researchers measuring larger number of nucleic acid and protein samples. NanoDrop ... Read More
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