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Company | JASCO | JASCO | JASCO | JASCO | JASCO |
Item | V-750 UV-Visible Spectrophotometer | CPL-300 Circularly Polarized Luminescence Spectrophotometer | FVS-6000 Vibrational Circular Dichroism Spectrometer | J-1500 Circular Dichroism Spectrophotometer | V-770 UV-Vis/NIR Spectrophotometer |
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Catalog Number | V-750 | CPL-300 | FVS-6000 | J-1500 | V-770 |
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Type | UV-Visible | Circularly Polarized Luminescence | Circular Dichroism | Circular Dichroism | UV-Visible/NIR |
Wavelength Range | 190 to 900 nm | 250 to 850 nm (Optional: 400 to 1,100 nm with PMT detector) | 3,200 to 850 cm-1 (Optional: 4,000 to 750 cm-1) | J-1500: 163 to 950 nm (Option: 163 to 1600 nm) | 190 to 2,700 nm (3,200 nm, option) |
Wavelength Accuracy | ±0.2 nm (at 656.1 nm) | Inquire | Inquire | Inquire | ±0.3 nm (at 656.1 nm) ± 1.5 nm (at 1312.2 nm) |
Scanning Speed | 10 to 4,000 nm/min (8,000 nm/min in preview mode) | up to 10,000 nm/min | Inquire | up to 10,000 nm/min | 10 to 4,000 nm/min (8,000 nm/min in preview mode) |
Spectral Bandwidth | 0.1, 0.2, 0.5, 1, 2, 5, 10 nm L2, L5, L10 nm (low stray light mode) M1, M2 nm (micro cell mode) | Inquire | Inquire | 0.01 to 16 nm | UV-Vis: 0.1, 0.2, 0.5, 1, 2, 5, 10 nm L2, L5, L10 nm (low stray light mode) M1, M2 nm (micro cell mode) NIR: 0.4, 0.8, 1, 2, 4, 8, 20, 40 L8, L20, L40 nm (low stray light mode) M4, M8 nm (micro cell mode) |
Optical System | Czerny-Turner mount Double monochromator Fully symmetrical double beam type | Double prism monochromators for both excitation and emission optics / Piezoelastic modulator / Lock-in amplifier | 28° Michelson interferometer, with gold coated corner-cube mirrors. mechanical bearing, temperature stabilized / KRS-5 Polarizer / | Double-prism polarizing monochromator / J-1700: Double-prism polarizing monochromator and grating monochromator | Czerny-Turner mount Single monochromator Fully symmetrical double beam type |
Light Source | Halogen lamp, Deuterium lamp | 150W Ozone-free air-cooled Xe lamp (Option: 150W air-cooled HgXe lamp) | High intensity ceramic source, insulated mount | 150W air-cooled Xe lamp or 450W water-cooled Xe lamp | Halogen lamp, Deuterium lamp |
Resolution | =BS9 | Wavelength Resolution: 0.025 nm CPL Resolution: 0.00001 mdeg | 0.5 to 16 cm-1 | Wavelength Resolution: 0.025 nm / CD Resolution: 0.00001 mdeg | =BS11 |
Description | The V-750 UV-Visible Spectrophotometer optical design uses precision double-beam optics with variable spectral bandwidth. A high sensitivity PMT detector provides accurate and reproducible measurements for low to high concentration samples. By controlling the high voltage applied to the PMT, the The V-750 UV-Visible Spectrophotometer optical design uses precision double-beam optics with variable spectral bandwidth. A high sensitivity PMT detector provides accurate and reproducible measurements for low to high concentration samples. By controlling the high voltage applied to the PMT, the dynode feedback offers a wider dynamic range than is generally found on uv-visible spectrophotometers. For high resolution measurements, such as gas and vapor phase spectroscopy, the spectral bandwidth can be set as narrow as 0.1 nm. Special low stray light slit settings which optimize the light image on the monochromator provide increased linearity to up to 5 absorbance units.... Read More | The CPL-300 Circularly Polarized Luminescence Spectrophotometer supplements the information obtained from other chiroptical techniques such as electronic or vibrational circular dichroism. Circular dichroism (CD) spectroscopy is widely used in the study of optically active substances. CD The CPL-300 Circularly Polarized Luminescence Spectrophotometer supplements the information obtained from other chiroptical techniques such as electronic or vibrational circular dichroism. Circular dichroism (CD) spectroscopy is widely used in the study of optically active substances. CD spectroscopy provides information about the structure of optically active substances in the electronic ground state, however, CPL spectroscopy provides information about excited states. The two techniques are therefore complimentary. The CPL-300 uses the original 180° fluorescence collection approach proposed by Steinberg. The standard ozone-free 150W Xe lamp can be user-replaced with an Hg/Xe source. The instrument’s unique double-prism excitation and emission monochromators offer very low stray-light and no spurious linear polarization effects caused by instruments that use diffraction gratings. These are both extremely important as CPL signals tend to be very weak.... Read More | The FVS-6000 Vibrational Circular Dichroism Spectrometer measures both IR absorption and VCD, and provides accurate and highly sensitive measurement in the fingerprint region. The FVS-6000 optical system uses a 28° interferometer with gold coated corner cube mirrors for high throughput and to The FVS-6000 Vibrational Circular Dichroism Spectrometer measures both IR absorption and VCD, and provides accurate and highly sensitive measurement in the fingerprint region. The FVS-6000 optical system uses a 28° interferometer with gold coated corner cube mirrors for high throughput and to minimize polarization effects with reflective optics to eliminate artifacts caused by birefringence, resulting in very high-quality VCD data. The FVS-6000 uses a unique highly sensitive narrow-band MCT detector specially developed for VCD measurement across the spectral range 3,200 to 850 cm-1. Optional detectors and filters can be added to extend the range to 4,000 to 750 cm-1, typically for measurement of -OH and -NH bands. Detectors are easily exchanged without the need for manual alignment, and optical filters can be selected automatically.... Read More | The J-1000 Series Circular Dichroism spectrophotometers are specifically designed for high sensitivity measurements in the near- and far-UV regions, for scientists that need confidence in the data from characterization studies of biomolecule structure, function, and stability under a wide variety ofThe J-1000 Series Circular Dichroism spectrophotometers are specifically designed for high sensitivity measurements in the near- and far-UV regions, for scientists that need confidence in the data from characterization studies of biomolecule structure, function, and stability under a wide variety of experimental conditions. The J-1500 allows for the maximum flexibility to upgrade your CD system with different measurement techniques. While the standard measurement modes are CD, LD, and absorbance, up to four simultaneous modes can be measured when combined with a wide range of sampling accessories. 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 to 950 nm) and an optional InGaAs detector (up to 1,600 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.... Read More | The V-770 UV-Visible/NIR Spectrophotometer features a unique single monochromator design for maximum light throughput with excellent absorbance linearity. A PMT detector is used for the UV to visible region and a Peltier-cooled PbS detector for the NIR region. |
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