Double Beam Spectrophotometer (UV Visible)

A UV-Vis spectrophotometer is used to determine the absorption of light from a sample and can be used as a detector for HPLC. A sample is placed in the UV/VIS beam and absorbance versus wavelength is measured. A double beam spectrophotometer utilizes two beams of light: a reference beam and a sampling beam that passes through the sample. Some double beam spectrophotometers have two detectors that allow the two beams to be measured at one time.

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CompanyShimadzuShimadzuShimadzu
ItemUV-2700i Research-Grade UV-Vis SpectrophotometerUV-1900i UV-VIS SpectrophotometerUV-2600i Research-Grade UV-Vis Spectrophotometer
Citations
Catalog NumberUV-2700iUV-1900iUV-2600i
Price
TypeUV/VisUV/VisUV/Vis
Wavelength Range185 to 900 nm190 to 1100 nm185 to 900 nm or 220 to 1400 nm (when the ISR-2600Plus Integrating Sphere Attachment is used)
Wavelength Accuracy+/-0.1 nm (656.1 nm D2), +/-0.3 nm (all range)± 0.1 nm at D2 peak 656.1 nm, ± 0.3 nm for entire range+/-0.1 nm (656.1 nm D2), +/-0.3 nm (all range)
Scanning Speed4000 to 0.5 nm/min3000 to 2 nm/min, 29000 nm/min when survey scanning4000 to 0.5 nm/min
Spectral Bandwidth0.1, 0.2, 0.5, 1, 2 or 5 nm1 nm0.1, 0.2, 0.5, 1, 2 or 5 nm
Light Source50 W Halogen Lamp, Deuterium LampInquire50 W Halogen Lamp, Deuterium Lamp
Resolution0.1 nm1 nm0.1 nm
DescriptionThe 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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Shimadzu’s UV-1900i double-beam spectrophotometer offers an exceptional balance of performance and value. The combination of high resolution, low stray light, and an ultrafast scan function with an easy-to-use interface makes this system ideal for R&D and QC laboratories in a variety of fields, such... 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 More
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