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
ItemNicolet™ Summit™ OA FTIR SpectrometerEvolution™ Peltier Thermostatting AccessoriesNanoDrop™ Eight SpectrophotometerNanoDrop™ Lite Plus SpectrophotometerNanoDrop™ Ultra Spectrophotometer
Citations
(1)
Reviews
Catalog NumberIQLAADGAAGFAQXMBML699-131100NDE-GL / NDEIGHT-LAPTOP / NDEIGHT-E1PIP / NDEIGHT-PIPNDLPLUSGL / NDPLUSPRGLNDULTRAGL
Price
TypeFTIR, LaboratorySingle Cell Peltier SystemUV VIS SpectrophotometerUV-VisMicrovolume UV-Vis Spectrophotometer
Wavelength Range6000 to 650 cm-1Inquire190 to 850 nm230 nm, 260 nm, 280 nm190 to 850 nm
Wavelength AccuracyInquireInquire± 1 nm± 1 nm± 1 nm
Scanning SpeedInquireInquire8 samples in < 20 sec≤ 5 secondsInquire
Spectral BandwidthInquireInquire< 1.8 nmInquire1.8 nm
Optical SystemInquireInquire2048-element CMOS linear image sensor2048-element CMOS Linear Image Sensor2048-element CMOS Linear Image Sensor
Light SourceInquireInquireXenon flash lampLight emitting diodesXenon Flash
ResolutionInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)≤ 1.8 nm (FWHM at Hg 254 nm)Inquire
Description

The Nicolet Summit OA FTIR Spectrometer is a dedicated analyzer for rapid characterization of oils, liquids, syrups, and pastes samples. An integrated zinc selenide (ZnSe) horizontal attenuated total reflectance (HATR) accessory delivers constant and reproducible pathlength, ideal for both

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Temperature 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 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 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 MoreThe Thermo Scientific™ NanoDrop™ Ultra Spectrophotometer and Fluorometer empowers scientists to quantify and assess nucleic acids and proteins with enhanced precision, speed, and reliability.
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