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™ Peltier Thermostatting AccessoriesGENESYS™ 180 UV-Vis SpectrophotometerNanoDrop™ Lite Plus SpectrophotometerNanoDrop™ Ultra SpectrophotometerSPECTRONIC™ 200 Spectrophotometer
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Catalog Number699-131100840-309000NDLPLUSGL / NDPLUSPRGLNDULTRAGL840-281700 / 840-281800 / 840-281900
Price
TypeSingle Cell Peltier SystemUV-VisibleUV-VisMicrovolume UV-Vis SpectrophotometerVisible
Wavelength RangeInquire190 nm to 1100 nm230 nm, 260 nm, 280 nm190 to 850 nm340 to 1000 nm
Wavelength AccuracyInquire± 0.5 nm± 1 nm± 1 nm+/- 2 nm
Scanning SpeedInquireSlow, medium and fast - up to 1600 nm/min≤ 5 secondsInquireInquire
Spectral BandwidthInquire2 nmInquire1.8 nm4 nm
Optical SystemInquireDouble Beam2048-element CMOS Linear Image Sensor2048-element CMOS Linear Image SensorSingle Beam
Light SourceInquireXenon Flash Lamp (>5 years typical, 3 years guaranteed)Light emitting diodesXenon FlashTungsten-halogen
ResolutionInquireInquire≤ 1.8 nm (FWHM at Hg 254 nm)InquireInquire
DescriptionTemperature 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 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 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.The Thermo Scientific SPECTRONIC 200 is the standard for rugged, simple-to-use visible spectrophotometers for teaching applications. Designed expressly for the teaching laboratory, the SPECTRONIC 200 spectrophotometer includes a removable, washable sample compartment that simplifies spill cleanup ... Read More
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