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U-3900/ 3900H Spectrophotometer

UV/Visible Spectrophotometer
Supplier : Hitachi High-Tech
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U-3900/ 3900H Spectrophotometer

UV/Visible Spectrophotometer

Product Description

Covers a wide variety of analysis needs from liquid samples to solid samples. Line-up of two types that can be selected in accordance with the measuring object and application. For use in a wide range of fields that focus on water quality, the environment, biotechnology, pharmaceuticals, materials, etc.


Perform Measurements in a Wide Absorbance Range With Low Stray Light and Low Noise

The larger the amount of transmitted light, the lower the noise of the obtained absorption spectrum so that a wider absorbance range can be measured. Measurements of high concentration samples can be performed over a wider concentration range.


Stable Spectrometer With Double Beam Optical System

The light source uses a WI lamp (visible range) and a D2 lamp (ultraviolet range) that switches wavelength depending on the measurement. The double beam system divides the monochromatic light so that the diffraction grates into the control and the sample with a rotational mirror, guiding the light to the sample chamber.

Single Monochrome Type U-3900 uses a spherical surface mirror in front of the entrance slit, while the Double Monochrome Type U-3900H uses diffraction grating.


Easy Device Control and Supports Various Quantitative Analysis Functions

Special operation software that offers substantial functions such as measurement data comparison and a preview function that allows for a more powerful analysis.


Substantial Accessories For Both Liquid and Solid Measurements

There is an abundant lineup of accessories to accommodate multiple sample and micro sample applications, etc.


Loaded With Aberration Corrected Concave Grating

The U-3900/3900H provides aberration-corrected concave gratings with a Seya-Namioka Mount for the spectrometer.
Both condensing and dispersing functions allow for a bright optical system, but with fewer mirrors so that light loss and aberrations are reduced.


Two Types of Optical Systems: Single Monochrome (U-3900) and Double Monochrome (U-3900H)

A lineup of two models with different spectrum systems: Single Monochrome (U-3900) and Double Monochrome (U-3900H)
The Single Monochrome is suitable for a low-concentration sample since sample light energy is stronger compared tothe Double Monochrome. The Double Monochrome is suitable for a high-concentration sample since it can measure high absorbance with little stray light.







Diffraction grating

Diffraction grating-diffraction

Single monochromator

grating Double monochromator

Seya-Namioka mount

Seya-Namioka mount

Wavelength range

190 to 900 nm

Spectral bandpass

0.1, 0.5, 1, 2, 4, 5 nm (6 steps)

Wavelength accuracy

±0.1 nm (at 656.1 nm after wavelength calibration)