Spectrophotometer UH3900S/UH3900D
The UH3900 is a low-noise model equipped with a photomultiplier tube (PMT) detector. With the latest software, UV Solutions Plus, it delivers an even more comfortable and user-friendly operating experience.
Two types are available to match your measurement needs: single monochromator and double monochromator configurations. From liquid samples to solid samples, the UH3900 series supports a wide range of analytical requirements and is used across diverse fields including water quality testing, environmental analysis, bio/life science, pharmaceuticals, and materials research.
Left photo: UH3900D. This model is designed for PC control only.
Features
UV Solutions Plus allows for easy device control and supports various quantitative-analysis functions
A new data processing software, the successor to UV Solutions, has been adopted.
It offers clear table views for data lists and processing results, customizable report layouts, and enhanced performance verification features.
Possible to 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 UH3900S uses a spherical surface mirror in front of the entrance slit, while the Double Monochrome Type UH3900D uses diffraction grating.
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 UH3900S/UH3900D 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 (UH3900S) and Double Monochrome (UH3900D)
A lineup of two models with different spectrum systems: Single Monochrome (UH3900S) and Double Monochrome (UH3900D).
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.
Specifications
| Item | UH3900S | UH3900D |
|---|---|---|
| Monochromator | Diffraction grating Single monochromator Seya-Namioka mount |
Diffraction grating-diffraction grating Double monochromator 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) | |
Hardware
Incorporation of double monochromator
Due to mounting of a double monochromator which uses Hitachi's original stigmatic concave diffraction grating, an excellent linearity is ensured up to high concentrations. Hence, highly reliable quantitative analysis is possible.
Scan speed : 300 nm/min
Slit : 2 nm
Effective in trace sample measurement
Satisfactory measurement is achievable even with 5, 25 and 50 ?L micro-sample cells because the beam is finely converged in the sample compartment. Shown here are spectra determined in the ultraviolet region by measuring nucleic-acid adenosine with a micro-sample cell (internal volume 25 ?L). A high S/N ratio was obtained.
Scan speed : 300 nm/min
Slit : 2 nm
Software
Many added features that follow in the footsteps of existing operability
- Change the wavelength unit of a monitored value during measurement
- Measurement progress display
- Photometric value unit conversion (Abs, % T, %R, etc.)
- Direct display of the concentration calculated from coefficients
- Batch data processing of multiple files, and more
List display feature for data processing results
Specific wavelength data, area calculation data, half-value width calculation data and other data across multiple samples can be displayed in tabular form. Comparing data between samples can be done easily. In addition, you can return to raw data after storing processed data.
Reporting function
You can freely lay out printable items such as analysis conditions, data processing results, spectra, etc. with the report layout feature, which did not exist in the UV Solutions software in the past. You can also print designated image data (jpg, png, and bmp).
Standard installation of performance confirmation feature
This feature can check for proper function and performance on a daily basis. Performance confirmation feature items: wavelength accuracy, wavelength setting repeatability, noise level (RMS), baseline flatness, baseline stability, spectral band width, photometric accuracy, stray light, group editing of performance confirmation items, graphical display of performance confirmation results history.
