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
ItemEvolution™ One/One Plus UV-Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesGENESYS™ 140 Vis SpectrophotometerNanoDrop™ Lite Plus SpectrophotometerNicolet™ Summit™ X FTIR Spectrometer
Citations
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Reviews
Catalog Number840-341400 / 840-341500699-131100840-308000NDLPLUSGL / NDPLUSPRGLIQLAADGAAGFAQXMBNM
Price
TypeUV-VisibleSingle Cell Peltier SystemVisibleUV-VisInquire
Wavelength Range190 to 1100 nmInquire325 nm to 1100 nm230 nm, 260 nm, 280 nm8000 to 350 cm-1
Wavelength Accuracy± 0.8 nm (full range 190 to 1100 nm)Inquire± 0.5 nm± 1 nmInquire
Scanning Speed< 1 to 6000 nm/minInquireAutomatic – up to 1800 nm/min≤ 5 secondsInquire
Spectral BandwidthInquireInquire5 nmInquireInquire
Optical SystemDouble BeamInquireDual Beam2048-element CMOS Linear Image SensorInquire
Light SourceXenon flash lampInquireTungsten-Halogen (>1000 hours)Light emitting diodesInquire
ResolutionInquireInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)Better than 0.6 cm-1
DescriptionFor routine, complex research and advanced applications, including current pharmaceopia compliance, the Thermo Scientific Evolution One/One Plus UV-Vis Spectrophotometer series offers real innovations that provide enhanced usability and performance - without added complexity. With Thermo Scientific ... 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 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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