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™ 40 Vis SpectrophotometerEvolution™ Peltier Thermostatting AccessoriesNanoDrop™ Lite Plus SpectrophotometerNicolet™ Apex FTIR SpectrometerNicolet™ Summit™ X FTIR Spectrometer
Citations
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(1)
Reviews
Catalog Number840-297000699-131100NDLPLUSGL / NDPLUSPRGLIQLAADGAAGFARXMBNZIQLAADGAAGFAQXMBNM
Price
TypeVisibleSingle Cell Peltier SystemUV-VisFTIR, LaboratoryInquire
Wavelength Range325 nm to 1100 nmInquire230 nm, 260 nm, 280 nmDepends on model8000 to 350 cm-1
Wavelength Accuracy± 0.5 nmInquire± 1 nmInquireInquire
Scanning SpeedAutomatic – up to 1800 nm/minInquire≤ 5 secondsInquireInquire
Spectral Bandwidth5 nmInquireInquireInquireInquire
Optical SystemDual BeamInquire2048-element CMOS Linear Image SensorInquireInquire
Light SourceTungsten-Halogen (>1000 hours)InquireLight emitting diodesInquireInquire
ResolutionInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)Better than 0.25 cm -1Better than 0.6 cm-1
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 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 More

With the Thermo Scientific™ Nicolet™ Apex FTIR Spectrometer you will maximize efficiency, ensure accuracy, and achieve compliance. Are you ready to unleash the power of the Apex FTIR? Configure your FTIR to match the needs of your lab environment and the spectral range required with

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