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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CompanyShimadzuShimadzuShimadzu
ItemSolidSpec 3700i UV-VIS-NIR spectrophotometerUV-2600i Research-Grade UV-Vis SpectrophotometerUV-2700i Research-Grade UV-Vis Spectrophotometer
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Catalog NumberSolidSpec 3700iUV-2600iUV-2700i
Price
TypeUV VIS NIRUV/VisUV/Vis
Wavelength Range240 to 2600 nm185 to 900 nm or 220 to 1400 nm (when the ISR-2600Plus Integrating Sphere Attachment is used)185 to 900 nm
Wavelength Accuracy+/- 0.2 nm (UV VIS), +/- 0.8 nm (NIR)+/-0.1 nm (656.1 nm D2), +/-0.3 nm (all range)+/-0.1 nm (656.1 nm D2), +/-0.3 nm (all range)
Scanning Speed3600nm/min for PMT4000 to 0.5 nm/min4000 to 0.5 nm/min
Spectral Bandwidth0.1, 0.2, 0.5, 1, 2, 3, 5, 8 nm (UV and Vis regions); 0.2, 0.5, 1, 2, 3, 5, 8, 12, 20, 32 nm (NIR region)0.1, 0.2, 0.5, 1, 2 or 5 nm0.1, 0.2, 0.5, 1, 2 or 5 nm
Optical SystemDouble BeamDouble Beam, Single MonochromatorDouble Beam, Double Monochromator
Light Source50W Halogen lamp, Deterium lamp50 W Halogen Lamp, Deuterium Lamp50 W Halogen Lamp, Deuterium Lamp
Resolution0.1 nm0.1 nm0.1 nm
DescriptionShimadzu’s SolidSpec-3700i/3700i DUV series UV-VIS-NIR spectrophotometers have been designed to address the needs of the electronics and optics markets. Two models are available: the 3700i for standard applications and the 3700i DUV for deep UV measurement to 165 nm. Large sample compartments ensure... Read MoreThe compact UV-2600i is a universal, research-grade spectrophotometer that can be used in a wide range of fields, and easily expanded to suit the measurement objective. By using the optional integrating sphere, the measurement wavelength range of the UV-2600i can be extended to the near-infrared ... Read MoreThe compact UV-2700i is a universal, research-grade spectrophotometer that can be used in a wide range of fields, and easily expanded to suit the measurement objective. The UV-2700i is capable of 8-Abs measurements, and optimal for measuring low transmittance samples.

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