About Double Beam UV-VIS Spectrophotometer Regular Model With Peltier LI-2802 R
The Microprocessor UV-VIS Double Beam Spectrophotometer Regular Model With Peltier Model : LI-2802 R is a sophisticated laboratory instrument designed for high-precision absorbance and transmittance measurements in research and industrial quality control. Its double-beam optical system utilizes dual detectors to measure sample and reference beams simultaneously, which significantly reduces measurement drift and ensures high stability during long-duration tests.
Applications: Pharmaceutical analysis biochemical research, environmental monitoring, food quality testing, chemical kinetics, DNA/RNA quantification, clinical diagnostics, water purity checks, metallurgy, and petrochemical testing
Technical specification
1.The valid temperature range is from 15C to 65C
2.The valid sampling time range is from 30s to 10min,
3.The valid peristaltic pump speed range is from 1 to 12
4.The sampling speed is about 50ml/min.
5.Power supply is 220+_22V@50+_1Hz or 110+_11V@60+_1Hz
Advanced Double Beam OpticsThe LI-2802 R utilizes a double beam system to simultaneously monitor reference and sample signals, ensuring high accuracy and repeatability in absorbance readings. This setup minimizes drift and compensates for fluctuations, making it ideal for rigorous scientific workflows in drug, food, and chemical analyses.
Efficient Sample Handling and Temperature ControlEquipped with an automatic 8-cell holder and a Peltier temperature control system, the LI-2802 R simplifies multiple analyses and ensures consistent thermal conditions for sensitive samples. The built-in sipper streamlines liquid sample introduction, saving time in high-throughput labs.
Intuitive Interface and Versatile ApplicationsA large graphic LCD (320x240 dots) and user-friendly PC-compatible software provide seamless operation and data management. The instrument supports quantitative analysis, wavelength scanning, multi-wavelength determination, and is suitable for sectors like pharmaceuticals, environmental monitoring, and food safety.
FAQ's of Double Beam UV-VIS Spectrophotometer Regular Model With Peltier LI-2802 R:
Q: How does the double beam optics system benefit analytical accuracy?
A: The double beam optics feature enables simultaneous measurement of the sample and reference signals, reducing measurement drift and compensating for light source fluctuations. This results in more stable and reliable absorbance readings for sensitive quantitative analyses.
Q: What types of analyses can the LI-2802 R perform?
A: This spectrophotometer is suitable for a range of applications including quantitative analysis, DNA/protein concentration measurement, enzyme activity monitoring, wavelength scanning, and multi-wavelength determination, supporting diverse research and routine laboratory tasks.
Q: Where is the LI-2802 R commonly used?
A: The LI-2802 R is widely used in pharmaceutical analysis, biochemical research, environmental monitoring, food quality testing, and studies related to chemical kinetics, making it valuable in research institutions, quality control labs, and industry settings.
Q: What are the advantages of the built-in Peltier temperature control?
A: The Peltier temperature control maintains precise and stable thermal environments, essential for temperature-sensitive assays like protein quantification or enzyme activity measurements, thereby enhancing reproducibility and experiment integrity.
Q: How is sample throughput managed by the instrument?
A: With its automatic 8-cell holder and built-in sipper system, the spectrophotometer enables efficient handling of multiple samples, streamlining workflow and reducing hands-on time, particularly beneficial in high-volume laboratory settings.
Q: What are the main benefits of its speed range and wavelength accuracy?
A: The instrument offers selectable speed modes (High, Medium, Low) with a maximum scanning rate of 2000 nm/min and a wavelength accuracy of 0.5 nm, ensuring both rapid data acquisition and high precision in spectral measurements.