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
ItemGENESYS™ 180 UV-Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesGENESYS™ 150 UV-Vis SpectrophotometerNanoDrop™ Lite Plus SpectrophotometerNicolet™ Summit™ X FTIR Spectrometer
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Catalog Number840-309000699-131100840-300000NDLPLUSGL / NDPLUSPRGLIQLAADGAAGFAQXMBNM
Price
TypeUV-VisibleSingle Cell Peltier SystemUV-VisibleUV-VisInquire
Wavelength Range190 nm to 1100 nmInquire190 nm to 1100 nm230 nm, 260 nm, 280 nm8000 to 350 cm-1
Wavelength Accuracy± 0.5 nmInquire± 0.5 nm± 1 nmInquire
Scanning SpeedSlow, medium and fast - up to 1600 nm/minInquireSlow, medium and fast - up to 1600 nm/min≤ 5 secondsInquire
Spectral Bandwidth2 nmInquire2 nmInquireInquire
Optical SystemDouble BeamInquireDual Beam2048-element CMOS Linear Image SensorInquire
Light SourceXenon Flash Lamp (>5 years typical, 3 years guaranteed)InquireXenon Flash Lamp (>5 years typical, 3 years guaranteed)Light emitting diodesInquire
ResolutionInquireInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)Better than 0.6 cm-1
DescriptionPerform high throughput quantitative UV-Vis measurements where a double beam is required as a reference cell position with the Thermo Scientific™ GENESYS™ 180 UV-Visible Spectrophotometer. Optimized for usability and performance, this platform features a high-resolution color touchscreen, Wi-Fi ... 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™ 150 UV-Visible Spectrophotometer. Optimized for usability and performance, this platform features a high-resolution color touchscreen, Wi-Fi ... Read MoreThe Thermo Scientific NanoDrop Lite Plus Spectrophotometer is a compact, personal UV-Vis microvolume spectrophotometer that complements the full-featured NanoDrop One/OneC and NanoDrop Eight instruments. The NanoDrop Lite Plus is an affordable choice for fast, easy measurements, designed to deliver ... Read MoreInquire
QuantityEAEAEAEAInquire
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