Circular dichroism spectrometerCircular Dichroism Spectrometer (CD) is an instrument used to study the chiral structural characteristics of biomolecules such as proteins, nucleic acids, etc. Based on measuring the difference in absorption of left-handed and right-handed circularly polarized light in the sample, circular dichroism spectra are obtained to analyze the chiral structure of biomolecules.

1. Core components:

Light source: Using a 150W xenon lamp or tunable laser, providing circularly polarized light with a wide wavelength range (170-900nm).

Spectral system: The dual polarization prism divides the light into left-handed (LCP) and right-handed (RCP) circularly polarized light.

Sample Room: Supports solution/solid sample analysis, equipped with temperature control module (optional -196 ℃ to 400 ℃).

Detector: a photomultiplier tube or CCD array that detects differences in light intensity and converts them into electrical signals.

Data processing: Built in algorithms calculate the molar ellipticity ([θ]) and anisotropy factor (g), supporting 3D structural simulation.

2. Technical advantages:

Sensitivity: The detection limit is up to 0.03mdeg (180nm), and it can analyze dilute solution samples (μ M concentration).

Resolution: Narrow bandwidth to 0.1nm, accurately capturing subtle structural changes.

Multifunctionality: Supports multi-mode combination of circular dichroism (CD), ultraviolet absorption (UV), and fluorescence (FL).

Automation: One click baseline calibration, supporting multi wavelength scanning and dynamic experiments.