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™ 40 Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesGENESYS™ 140 Vis SpectrophotometerGENESYS™ 50 UV-Vis SpectrophotometerNanoDrop™ Eight Spectrophotometer
Citations
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Catalog Number840-297000699-131100840-308000840-298000NDE-GL / NDEIGHT-LAPTOP / NDEIGHT-E1PIP / NDEIGHT-PIP
Price
TypeVisibleSingle Cell Peltier SystemVisibleUV-VisibleUV VIS Spectrophotometer
Wavelength Range325 nm to 1100 nmInquire325 nm to 1100 nm190 nm to 1100 nm190 to 850 nm
Wavelength Accuracy± 0.5 nmInquire± 0.5 nm±0.5 nm± 1 nm
Scanning SpeedAutomatic – up to 1800 nm/minInquireAutomatic – up to 1800 nm/minSlow, medium and fast - up to 1600 nm/min8 samples in < 20 sec
Spectral Bandwidth5 nmInquire5 nm2 nm< 1.8 nm
Optical SystemDual BeamInquireDual BeamDual Beam2048-element CMOS linear image sensor
Light SourceTungsten-Halogen (>1000 hours)InquireTungsten-Halogen (>1000 hours)Xenon Flash Lamp (>5 years typical, 3 years guaranteed)Xenon flash lamp
ResolutionInquireInquireInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)
DescriptionPerform 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 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 quantitative measurements in routine industrial QA/QC or university chemistry labs with the automated and network-ready Thermo Scientific™ GENESYS 140 Vis Spectrophotometers. Optimized for usability and performance, this platform features a high-resolution color touchscreen, Wi-Fi ... 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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