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Circular Dichroism

The Aviv Circular Dichroism Spectrometer, model 215, records CD as a function of wavelength, time, temperature, pH and concentration using a double monochromator containing two UV grade prisms as dispersing elements. Right and left circularly polarized light is produced by a 50 KHz photoelastic modulator.

The instrument includes software by AVIV for instrument control, data acquisition, and processing in a Windows environment.

circular dichroism spectrometer

Specifications:

Wavelength Range: 200 to 1200 nm.

Stray Light: Less than 0.005% at 200 nm, less than 0.1% over operating limits.

Baseline Drift: Less than +/- 0.05 mdeg per hour after warm-up, providing environment is held at 24ºC +/- 2ºC.

Light Source: 150 Watt suprasil Xenon lamp controlled by a high stability, constant current, DC power supply.