Double Beam UV-Visible Spectrophotometer LB-21DBS Catalog

Double Beam UV-Visible Spectrophotometer LB-21DBS is adopted with microcomputer technology and electronic control system, features holographic grating with 1200 lines/mm. Equipped with solid silicone photodiode detector and xenon lamp as light source, have 190 to 1100 nm of wavelength range. Designed with 7-inch TFT screen with sensitive buttons and large sample chamber, it also supports USB storage and different data formats.

Optical System	Double Beam
Bandwidth	1 nm
Cell Holder	2-position; 1 cm cell holder
Grating	Holographic grating; 1200 lines/mm
Wavelength Range	190 to 1100 nm
Wavelength Accuracy	± 0.6 nm
Wavelength Repeatability	≤ 0.2 nm
Photometric Range	0 to 200% T - 0.3 to 3 A 0 to 9999 C (0 to 9999 F)
Photometric Accuracy	0.3% T (0 to 100% T) ± 0.005 A (0 to 0.5 A) ± 0.01 A (0.5 to 1 A)
Photometric Repeatability	≤ 0.2 % T (0 to 100% T) 0.003 A (0 to 0.5 A) 0.005 A (0.5 to 1 A)
Stray Light	≤ 0.1% T at 220 and 360 nm
Stability	± 0.002 A/h at 500 nm
Baseline Flatness	± 0.002 A (200 to 1000 nm)
Working mode	T, A, C, E
Wavelength Setting	Automatic
Scanning Speed	Low, medium and High (up to 3000 nm/min)
Detector	Solid silicone photodiode
Light Source	Xenon lamp
Display	7 inch TFT screen
Interface	USB
Power Supply	AC 100 to 220 V, 50/60 Hz
Packaging Dimension (W × D × H)	790 × 660 × 370 mm
Weight	29 kg

• Microprocessor controlled unit
• Electronic control system
• Solid silicone photodiode detectore
• 7-inch TFT screen with sensitive silicone buttons
• Automatic wavelength setting
• Supports USB storage for easy data processing

10 mm glass cuvette × 4 pc

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10 mm quartz cuvette × 2 pc

Software

Double Beam UV-Visible Spectrophotometer is used across biochemistry, biochemical, pharmaceutical, environmental protections, food, chemical, universities and quality control for concentration measurement, sample analysis, impurities detection, chemical kinetics, etc.