Double Beam UV-VIS Spectrophotometer LI-2800 EX

About Double Beam UV-VIS Spectrophotometer LI-2800 EX

Microprocessor UVVIS Double Beam Spectrophotometer Exclusive Model Variable Bandwidth Model LI2800 EX

Elevate your laboratorys analytical precision with theLI2800 EX an Exclusive Model doublebeam spectrophotometer engineered for highend research and stringent quality control 1 2 4 Designed with a sophisticatedvariable bandwidthsystem and a true doublebeam optical path this instrument delivers the stability and accuracy required for complex biochemical pharmaceutical and environmental testing 1 3 5

Advanced Optical Design Variable Bandwidth

Unlike standard fixedbandwidth models the LI2800 EX features an adjustable spectral bandwidth 05 1 2 4 and 5 nm 1 2 6 This flexibility allows researchers to optimize the tradeoff between signaltonoise ratio and spectral resolution making it ideal for identifying sharp peaks in complex chemical samples 1 2 12 TheDouble Beamsystem powered by a 1200 linesmm holographic grating ensures minimal drift and high stability by simultaneously monitoring the sample and the reference 1 3 5

Intelligent Microprocessor Control

Equipped with a powerful microprocessor the LI2800 EX offers an intuitive user experience through its320 x 240 dots graphic LCDand a 30key alphanumeric membrane keypad 1 2 5 The system supports fully automated operations including

Automatic Wavelength CalibrationEnsuring data integrity with every startup 1 12

Dark Current CorrectionMaintaining precision even at low light levels 1

AutoCell ChangerOften paired with an8cell holderfor highthroughput automated measurements 1 2 5

Versatile Operational Modes

The instrument is preloaded with comprehensive software functions to handle diverse workflows

Photometric ModeMeasure Absorbance and Transmittance at specific wavelengths 1 2 5

Quantitative ModeBuild standard curves using up to 10 points for precise concentration analysis 1 2

MultiWavelengthTest samples at multiple points simultaneously 1 2 5

Kinetics Time ScanMonitor reaction rates and enzymatic activity over time 1 5 12

DNAProtein AnalysisDedicated algorithms for calculating ratios and concentrations in life science applications 1 2 5

Key Technical Specifications

Wavelength Range190 1100 nm 1 2 6

Wavelength Accuracy03 nm at full range 1 2

Stray Light 005 T at 220 nm and 340 nm 1 2 5

Photometric Range03 to 30 A 0 to 200 T 1 2

Light SourcesPrealigned Deuterium UV and Tungsten Halogen Visible lamps for easy maintenance 1 2

Data ConnectivityUSB and Parallel ports for PC linking and direct printing 1 2