Double Beam UV-Visible Spectrophotometer LB-11DBS Catalog

Double Beam UV-Visible Spectrophotometer LB-11DBS offers a wavelength range of 190 to 1100 nm, ensuring precise and accurate spectral analysis of samples. It has double beam optical system and uses a 1200 lines/mm diffraction grating for high-resolution spectral separation. It employs an imported silicon photodiode detector for fast and accurate signal conversion. Our spectrophotometer features a 7-inch color LCD screen for intuitive control and clear display of results.

Wavelength Range	190 to 1100 nm
Spectral Bandwidth	1 nm
Wavelength Accuracy	±0.1 nm at 656.1 nm, ±0.3 nm (all)
Wavelength Repeatability	≤ 0.1 nm
Photometric Range	0 to 200%T, -0.3 to 3A, 0 to 9999C
Photometric Accuracy	0.2% T (0 to 100% T); ±0.002A (0 to 0.5A); ±0.004A (0.5 to 1A)
Photometric Repeatability	≤ 0.15% T (0 to 100% T); 0.001A (0 to 0.5A); 0.002A (0.5 to 1A)
Optical system	Single Beam, Grating 1200 lines/mm
Stray Light	≤0.03% T at 220 nm, 360 nm
Stability	±0.0005 A/h at 500 nm
Baseline Flatness	±0.001 A
Work Modes	T, A, C, E
Scanning Speed	High, Medium, Low (Maximum 3000 nm/min)
Display	7-inch Colorscreen
Light Source	Deuterium & Tungsten Lamp
Detector	Imported Silicon Photodiode
Cuvette Holder	10 mm manual 4-cell holder
Communication Interfaces	USB drive, USB host, RS232
Noise level	0.0005 A at 500 nm
Power Supply	AC 110-220 V, 50/60 Hz
Product Dimension	590 × 470 × 250 mm
Packaging Dimension	810× 660 × 390 mm
Net Weight	20 kg
Gross Weight	27 kg

• Windows-style interface
• Multi-parameter testing
• Easy lamp switching
• Low stray light
• Multiple scan speeds
• Manual cuvette holder
• Low noise level

10mm Glass Cuvette × 4 pcs

10mm Quartz Cuvette × 2 pcs

Power cord

PC software

5 mm glass cuvettes × 4 pcs/box
20 mm glass cuvettes × 2 pcs/box
30 mm glass cuvettes × 2 pcs/box
50 mm glass cuvettes × 2 pcs/box
100 mm glass cuvettes × 2 pcs/box
5 mm quartz cuvettes × 2 pcs/box
20 mm quartz cuvettes × 2 pcs/box
30 mm quartz cuvettes × 2 pcs/box
50 mm quartz cuvettes × 2 pcs/box
100 mm quartz cuvette × 1 pcs/box
0.35/0.7/1.0/1.4/1.7 ml Quartz micro-cuvettes × 2 pcs/box
50/100/200 µl Quartz micro-cuvettes  × 2 pcs/box
0.35/0.7/1.0/1.4/1.7 ml Glass micro-cuvettes × 2 pcs/box
50/100/200 µl Glass micro-cuvettes × 2 pcs/box
10 mm Manual 4-Cell Holder 
50 mm Manual 4-Cell Holder 
100 mm Manual 4-Cell Holder 
10 mm Single Hole Cell Holder 
50 mm Single-Hole Long-Path Cell Holder 
100 mm Single-Hole Long-Path Cell Holder 
Auto 4-Cell/5-Cell/8-Cell Holder
Film Holder
Tube Rack
Adjustable XY Micro Holder
Peltier/Sipper System
Integrating Sphere
1000 Tungsten Lamp 
1200/1600/1700/1800/1900/N/K/X/T Tungsten Lamp
1000/1200 Deuterium Lamp
1600/1700/1800/1900/N/K/X/T Deuterium Lamp
Xenon Lamp
Thermal Printer
Built-In Thermal Printer
1000/1200 PC Software
1600/1700/1800/1900/N/K/X/T/M PC Software
1600/1700/1800/1900/N/K/X/T/M 21-CFR Software

 

Solution Standards: 

500 ml Chloride Standard Solution (1000 mg/L concentration) 

500 ml Silica Standard Solution 

500 ml Iron Standard Solution 

500 ml Sulphate Standard Solution (Sulfuric Acid-based)

Double Beam UV-Visible Spectrophotometer LB-11DBS is used for photometric, quantitative, kinetic studies, spectrum scanning, and DNA/protein testing of samples. It is widely used in research laboratories, medical diagnostics, environmental analysis, and food quality control.