UV-Visible Spektrofotometre Cecil Instruments CE-2021

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UV-Vis Spectrophotometer with Littrow Monochromator System

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High-performance dual-beam UV-Vis spectrophotometer featuring 1200-line holographic grating, automatic cell changer, and comprehensive analytical capabilities for laboratory applications.

1200 lines/holographic grating Littrow monochromator system
Optional automatic cell changer supporting 4, 6, or 8 cuvette positions
Spectral bandwidth: 8 nm
Operating range: 190-1000 nm with ±1 nm wavelength accuracy and <0.1 nm repeatability
Measurement ranges: 0.3-3.0 A (Absorbance), 0-200% T (Transmittance), 0-9999 mg/L (Concentration)
Automatic calibration and self-check on power-up
Backlit, contrast-controlled high-resolution LCD display with real-time spectral data visualization
Automatic filter and lamp selection
Programmable wavelength and cell selection for up to 10 wavelengths across any cell combination
Automatic peak search and curve fitting with up to 30 standard references
Method and graph data storage (100 methods, 30 graphs) with security code protection
Absorbance ratio capability for 260/280 nm or user-defined wavelength pairs
Multi-wavelength analysis for 2 or 3 simultaneous wavelengths
Bidirectional RS-232C serial port (computer) and parallel port (printer) for data transfer

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Daha fazla detay

Professional-grade UV-Vis spectrophotometer incorporating a Littrow monochromator optical system with 1200-line holographic grating for precise wavelength selection and measurement. The instrument provides comprehensive analytical capabilities across the 190-1000 nm spectral range with advanced software features for method development, data analysis, and result documentation.

Technical Specifications

Monochromator Type	Littrow system with 1200 lines/mm holographic grating
Spectral Range	190-1000 nm
Spectral Bandwidth	8 nm
Wavelength Accuracy	±1 nm
Wavelength Repeatability	<0.1 nm
Absorbance Measurement Range	0.3-3.0 A
Transmittance Measurement Range	0-200% T
Concentration Measurement Range	0-9999 mg/L
Cell Compartment	Optional automatic cell changer (4, 6, or 8 positions)
Display Type	Backlit LCD with contrast control
Wavelength Programming Capacity	Up to 10 wavelengths across any cell combination
Method Storage Capacity	100 methods with security code protection
Graph Data Storage	30 spectra/graphs
Data Transfer Ports	RS-232C serial (computer) and parallel (printer)

Applications

Pharmaceutical and chemical compound analysis and quality control
Biochemical and protein absorbance measurements (including 260/280 nm ratio analysis)
Environmental water and wastewater analysis
Clinical laboratory diagnostics
Food and beverage composition analysis
Educational research and method development
Regulatory compliance testing and batch verification
Multi-wavelength kinetic studies and enzyme assays

Frequently Asked Questions

What is the benefit of the Littrow monochromator design?

The Littrow monochromator configuration with 1200-line holographic grating provides superior wavelength resolution and accuracy while maintaining compact optical path design and fast wavelength switching capabilities.

Can I analyze multiple wavelengths simultaneously?

Yes, the instrument supports multi-wavelength analysis for 2 or 3 simultaneous wavelengths, enabling kinetic measurements and multi-component analysis without sequential scanning.

Is the cell changer automatic?

The automatic cell changer is an optional accessory that can accommodate 4, 6, or 8 cuvette positions, allowing unattended sequential analysis of multiple samples.

How does automatic calibration work?

The instrument performs automatic calibration and comprehensive self-check routines on every power-up to ensure measurement accuracy and system reliability.

What data storage and reporting capabilities does it have?

The system stores up to 100 complete methods and 30 spectral graphs with security code protection. Data can be transferred to computers or printers via RS-232C serial or parallel ports.

Can it perform peak search automatically?

Yes, the instrument includes automatic peak search functionality with curve and linear fitting capabilities against up to 30 reference standards.