Double Beam UV-Vis Spectrophotometer US-B20
The Double Beam UV-Vis Spectrophotometer US-B20 is specially designed with a double beam configuration, covering a wavelength range from 190 to 1100 nm. It incorporates a C-T monochromator and a 1600 L/mm holographic grating for precise measurements. Featuring 3D spectrogram measurement capability, it accommodates samples with dynamic changes, while its adjustable spectral bandwidth ranging from 1.0 nm to 5.0 nm enhances versatility. Compact in design, it includes a fixed 2-trench sample holder and utilizes deuterium and tungsten lamps as light sources, with automatic calibration for added convenience. Equipped with a photomultiplier sensor, digital signal processing, and USB interface, along with 4 quartz cuvettes, this spectrophotometer ensures high resolution, low stray light, enduring stability, and powerful software functionality.
| Wavelength range | 190 to 1100 nm |
| Spectral bandwidth | 1.0 to 5.0 nm (adjustable) |
| Optical system | Double beam, C-T monochromator, 1600 L/mm holographic grating |
| Wavelength accuracy | ±0.3 nm |
| Wavelength repeatability | 0.1 nm |
| Wavelength resolution | 0.05 nm |
| Wavelength edge noise | 100%T line ≤0.1%T；0%T line ≤0.05%T |
| Stray light | 0.015 %T (at 220nm and 360 nm) |
| Baseline flatness | ≤±0.001 Abs |
| Baseline noise | ±0.1 %T |
| Baseline drift | ≤0.0004 Abs / h (after warm-up at 500 nm) |
| Standard sample holder | Fixed 2 trench sample holder |
| Measuring length | 0 to 200% T, -4.000 to 4.000 Abs, -9999 to 9999C, -9999 to 9999F |
| Transmittance accuracy | ±0.3 %T |
| Transmittance repeatability | 0.1 % T |
| Light switching point | Adjustable; 294 nm to 365 nm |
| Light Source | Deuterium lamp, Tungsten lamp (20 W/12 V) |
| Detector | Silicon photodiode detector |
| Interface | Digital signal; USB |
| Cuvette | 4 quartz cuvette; 10 mm optical path |
| Power supply | 220 V ± 10%, 50Hz |
| Power | 200 W |
| Dimension (L×W×H) | 620×510×245 mm |
| Package dimension (L×W×H) | 745×635×400 mm |
| Net weight | 30 kg |
| Gross weight | 39 kg |
- Work modes include T, A, C, E, and scanning speed range offers Hi, Med, Low (Max. 3000 nm/min)
- Designed with a double beam 1200 lines/mm optical system
- In-house massive memory capable of storing up to 1024 M for test data & working curves
- Features a 10.1-inch high-resolution TFT colored capacitive touch screen and Windows Graphic interface
- Large sample chamber accommodates 5 to 100 mm cuvettes of all kinds
- Equipped with powerful functions including Photometric measurement, Quantitative measurement, Kinetics, Spectrum scan, DNA/Protein test, Multi-wavelength test, etc.
- USB port facilitates data transfer, easily exportable to Excel for further processing
- Socket type deuterium and tungsten lamp enables lamp switching without optics debugging and easy replacement
It finds widespread application in research facilities, laboratories, educational institutions, pharmaceuticals, hospitals, and medical fields. Its primary uses include diagnosing diseases and detecting impurities in organic compounds.
