Circular Dichroism Spectropolarimeter: Jasco J-810 Circular Dichroism Spectropolarimeter

Jasco J-810 Circular Dichroism Spectropolarimeter What is it?
A hybrid instrument consisting of a variable wavelength polarimeter and absorption spectrophotometer

Manufacturer: Jasco

Model Name: J-810

Applications: Protein conformational studies, Protein folding studies, DNA/RNA interactions, Enzyme kinetics, Purity testing of optically active substances

Instrument Overview: The Jasco J-810 Spectropolarimeter (163-900 nm) is a hybrid instrument consisting of a variable wavelength polarimeter and absorption spectrophotometer. It is designed to allow secondary structure determination by circular dichroism; specifically measuring the left-and right-handed circularly polarized light of optically active molecules. It is equipped with a computer-controlled Peltier device (3-90 °C) and a two-syringe titrator to assess thermal/chemical stabilities of proteins/ polypeptides or to monitor ligand binding and is controlled by Jasco’s Spectra Manager software.

Technical features and specifications:
Light source: 150W air cooled Xe lamp or 450W water cooled Xe lamp (option)
Detector: Head-on photomultiplier tube
Modulator: Piezoelastic modulator
Wavelength accuracy: ±0.2 nm (at 163 to 180 nm) ±0.1 nm (at 180 to 250 nm) ±0.3 nm (at 250 to 500 nm) ±0.8 nm (at 500 to 800 nm) ±2.0 nm (at 800 to 1100 nm)
Spectral Bandwidth: 0.01 to 15 nm
Slit width: 1 to 3000 μm
Response: 0.5 msec to 32 sec
Scanning system: Continuous scan Step scan (Fixed response and auto response system)
Scanning speeds: 1 to 10000 nm/min (continuous scan) Data interval: 0.025 to 10 nm (continuous scan) 0.1 to 100 nm (step scan) 0.5 msec to 60 min (time change)
CD full scale: ±10, 200, 2000 mdeg
CD resolution: 0.0005 mdeg (at ±10 mdeg full scale) 0.01 mdeg ( at ±200 mdeg full scale) 0.1 mdeg ( at ±2000 mdeg full scale)
Stray light: Less than 0.0003% (200 nm)
RMS noise: 185 nm:0.050 mdeg (150W Xe lamp) 200 nm:0.040 mdeg (150W Xe lamp) 500 nm:0.035 mdeg (150W Xe lamp) (Spectal bandwidth 1 nm, response 16 sec)
Baseline Stability: ±0.03 mdeg/hr (Spectal bandwidth 1 nm, response 32 sec, wavelength 290 nm)
External input terminal: Two channels (input range: -1 to 1 V)
Shutter: Opens and closes in front of sample
Sample chamber: Small size (S type) and large size (L type) are available Small size chamber dimensions: 140 (W) x 300 (D) x 130 (H) mm Large size chamber dimensions: 305 (W) x 420 (D) x 270 (H) mm
Nitrogen gas purge: Atmosphetr in the light source unit, monochromator unit, and sample chamber is displaced using dry nitrogen gas.

Charges:
User operated: $30/h, Staff operated: $50/h

Instrument Manufacturer URL:https://jascoinc.com/products/spectroscopy/circular-dichroism/

Detailed Specifications:
N.A.