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Aviv 202 Circular Dichroism Spectrometer


Key Features:

Wavelength Range: 165-900 nm. Optional to 1200 nm
Stray Light: Intensity ratio less than 0.001 at 200 nm, less than 0.1 over operating limits.
Slit Program: Constant bandwidth from 0.01 to 12 nm. Automatic slit closure option to protect sample and optics from UV light.
Baseline Drift: Less than +/- 0.15 mdeg per hour drift after 30-minute warm-up.
Light Source: 450 watt suprasil Xenon lamp controlled by a high stability, constant current, DC power supply.
RMS Noise less than: 0.1 mdeg at 185 nm
0.8 mdeg at 200 nm
0.06 mdeg at 500 nm
Experimental Modes Wavelength: Records CD versus Wavelength at user selected bandwidth and averaging time. Data cannot be skewed by selecting improper scan speed.
Temperature: Software control of thermoelectric device to maintain constant sample temperature, generate rising or falling temperature steps. Records CD versus temperature at fixed wavelength.
Kinetics: Measures changes in the CD signal as a function of time. Measures signal with time constants of seconds and longer.
Textbook: "Circular Dichroism and the Conformational Analysis of Biomolecules." Edited by Dr. Gerald Fasman, Plenum Press.
Single Cuvette: Range -10 to +110°c
resolution +/- 0.1
stability +/- 0.3°c
Thermoelectric Cuvette Holder: Single Cuvette
Thermoelectric Cuvette Holder: 5 cm pathlength
Chiller: Heat exchanger for thermoelectric cell holder and 450W Xenon lamp. 950W cooling capacity, 11 lpm, 60 psi. Includes external pressure reducer. Includes necessary fittings and hoses for system integration.