JASCO｜Circular Dichroism spectrometer║J-1500
These accessories can measure a variety of samples, from liquids to films to solid-states. Temperature control systems can be coupled with multi-position cells to run thermal melts, providing researchers with CD and thermodynamic data sets for conformational and folding studies. Automated high-throughput CD can obtain measurements on up to 192 samples without user intervention, saving both time and money. Kinetic and protein dynamics studies can be performed with our dedicated stopped-flow systems that can measure both CD and fluorescence.
The wavelength range has also been significantly extended, allowing measurements to be obtained in both the vacuum-UV and NIR spectral regions using the standard PMT detector (163 – 950 nm) and an optional InGaAs detector (up to 1600 nm). Additional features now allow researchers to optimize their parameter specifications in order to obtain data with the highest resolution and S/N performance for a specific application set.
Feature :
- High optical throughput
- Double prism monochromator providing low stray light
- Wide dynamic range PMT detector
- Highly efficient nitrogen purge system
- Digital signal processing
- Simultaneous Multi-Probe: CD, LD, HT, DC, absorbance, fluorescence
|
Model |
J-1500 |
|
Light source |
150W air-cooled Xe lamp (J-1500-150) or |
|
Optional light source |
20W Halogen lamp, |
|
Light source for validation |
Integrated Mercury lamp |
|
Detector |
PMT, ExPMT (option), InGaAs (option) |
|
Monochromator |
Double-prism polarizing monochromator |
|
Wavelength range |
163 to 950 nm (standard) |
|
Wavelength accuracy |
±0.1 nm (163 to 250 nm) |
|
Wavelength |
±0.05 nm (163 to 500 nm) |
|
Wavelength resolution |
0.025 nm |
|
Spectral bandwith |
0.01 to 16 nm |
|
Slit width |
1 to 4000 μm |
|
Digital Integration Time |
0.1 msec to 30 sec |
|
Measurement mode |
Continuous scan, step scan, auto-scan |
|
Scanning speed |
up to 10,000 nm/min |
|
CD full scale |
±8000 mdeg |
|
CD resolution |
0.00001 mdeg |
|
CD dynamic range |
No CD distortion even with an OD=3 sample in the optical path |
|
Stray light |
less than 0.0003% (at 200 nm) |
|
RMS noise |
0.004 mdeg (185nm, 150W) |
|
Baseline stability |
0.02 mdeg/hr |
|
LD measurement |
Provided as standard, Full scale ±1 ΔOD |
|
UV measurement |
Provided as standard, Full scale up to 5 Abs |
|
External input terminals |
Two channels (input range: -1 to 1 V DC) |
|
Nitrogen gas purge |
High efficiency N2 purge with internal optimization for light source unit, monochromator unit and sample compartment |
|
Accessory autorecognition |
Standard |
|
Communication / control |
USB 2.0 / Spectra Manager™ II or Spectra Manager™ CFR |
|
Sample compartment size |
150 W x 310 D x 165 H mm |
|
Dimensions |
1055 W x 545 D x 390 H mm (J-1500-150) |
|
Weight |
77 kg (J-1500-150), 82 kg (J-1500-450) |
|
Power input voltage |
100, 115, 200, 220, 230, 240 V, 50/60 Hz |
|
Power consumption |
315 VA (J-1500-150) |
