In the field of modern material analysis, accurately capturing the spectral characteristics of substances is the key to unlocking their properties. As the core equipment for vacuum ultraviolet band detection, vacuum ultraviolet spectrophotometer plays a prominent role in cutting-edge fields such as biomedicine and semiconductors with its unique design and performance, providing reliable material characterization tools for scientific research.
The core of precise detection: scientific working principle
The precise detection of this device comes from a rigorous workflow: using a deuterium lamp as the light source to emit vacuum ultraviolet light, the light is transmitted in a high vacuum environment (avoiding air interference), focused by the light receiving system to the monochromator, and after the monochromator screens out the target monochromatic light, it is accurately focused on the sample area.
The system is equipped with dual PMT detectors, which respectively collect sample and reference light signals. After the signals are compared and analyzed by professional software, absorption spectra are generated, and researchers can accurately characterize the composition and structure of the sample based on this.
The confidence to stand out: product features
Compared to traditional equipment, the core advantage of vacuum ultraviolet spectrophotometer is significant, and it is suitable for efficient applications in multiple scenarios.
One is high vacuum compatibility, which can avoid interference from water vapor and oxygen, ensure detection accuracy, and meet the high vacuum detection needs of special samples.
The second is the design of dual PMT detectors, which reduce environmental interference and improve detection sensitivity and stability by comparing the sample and reference light signals in real time.
Thirdly, the software supports customization, allowing researchers to adjust parameters and interfaces as needed to improve operational efficiency.
The fourth is that the sample and detector operate independently, with no interference between operation and signal acquisition, improving the controllability of detection and the reliability of results.
The core of performance guarantee: precise technical parameters
Accurate technical parameters are the core guarantee of performance: wavelength range of 120-320nm, repeatability of 0.05nm, calibration accuracy of 0.01nm, laying a precise foundation for spectral analysis.
Equipment stability<0.5% per hour, suitable for continuous experiments; The vacuum degree of the system reaches 5x10 ⁻ ³ Pa, ensuring the quality of optical transmission. 200W MgF ₂ window deuterium lamp can provide stable high-intensity light source.
The rotation range of the sample detector is 10 ° -180 °, and the rotation angle of the sample is 9-60 °, with flexible adjustment; The 90Hz chopping frequency combined with a high-sensitivity lock-in amplifier (10F-10mA) can effectively filter noise. 120~320nm precision adjustable slit, further optimizing signal acquisition.
Empowering the value of scientific research: a wide range of application areas
Its application covers multiple fields: in the field of biomedicine, it is used for drug analysis and characterization of biomolecules; In the field of environmental science, trace pollutants can be detected to assist in monitoring and governance.
Supporting research on extreme ultraviolet light sources and material testing in the semiconductor field; In the field of space and defense, it is suitable for the detection needs in special environments.
In summary, vacuum ultraviolet spectrophotometer has become a scientific research equipment with comprehensive advantages, and will provide support for innovation in more fields in the future.