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Company | JASCO | JASCO | JASCO | JASCO | JASCO |
Item | CPL-300 Circularly Polarized Luminescence Spectrophotometer | J-1100 Circular Dichroism Spectrophotometer | V-750 UV-Visible Spectrophotometer | V-760 UV-Visible Spectrophotometer | V-770 UV-Vis/NIR Spectrophotometer |
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Catalog Number | CPL-300 | J-1100 | V-750 | V-760 | V-770 |
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Type | Circularly Polarized Luminescence | Circular Dichroism | UV-Visible | UV-Visible | UV-Visible/NIR |
Wavelength Range | 250 to 850 nm (Optional: 400 to 1,100 nm with PMT detector) | 180 to 600 nm | 190 to 900 nm | 187 to 900 nm | 190 to 2,700 nm (3,200 nm, option) |
Wavelength Accuracy | Inquire | Inquire | ±0.2 nm (at 656.1 nm) | ±0.1 nm (at 656.1 nm) | ±0.3 nm (at 656.1 nm) ± 1.5 nm (at 1312.2 nm) |
Scanning Speed | up to 10,000 nm/min | up to 5,000 nm/min | 10 to 4,000 nm/min (8,000 nm/min in preview mode) | 10 to 4,000 nm/min (8,000 nm/min in preview mode) | 10 to 4,000 nm/min (8,000 nm/min in preview mode) |
Spectral Bandwidth | Inquire | 1 nm | 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) | 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) | 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 | Double prism monochromators for both excitation and emission optics / Piezoelastic modulator / Lock-in amplifier | Double-prism polarizing monochromator / J-1700: Double-prism polarizing monochromator and grating monochromator | Czerny-Turner mount Double monochromator Fully symmetrical double beam type | Czerny-Turner mount Single monochromator Fully symmetrical double beam type | Czerny-Turner mount Single monochromator Fully symmetrical double beam type |
Light Source | 150W Ozone-free air-cooled Xe lamp (Option: 150W air-cooled HgXe lamp) | 150W air-cooled Xe lamp | Halogen lamp, Deuterium lamp | Halogen lamp, Deuterium lamp | Halogen lamp, Deuterium lamp |
Resolution | Wavelength Resolution: 0.025 nm CPL Resolution: 0.00001 mdeg | Wavelength Resolution: 0.025 nm / CD Resolution: 0.00001 mdeg | =BS9 | =BS10 | =BS11 |
Description | 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 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-1100 Circular Dichroism spectrophotometer is a compact, general-purpose space-saving design. This simple yet powerful instrument is perfect for users looking to obtain more routine CD measurements in both industry and academia. The J-1100 uses simple optimized parameters so that a wide range of users with different levels of CD knowledge can get right down to work and successfully obtain high quality data. The wavelength range from 180 to 600 nm is suitable for obtaining secondary and tertiary structure measurements in the near- and far-UV. When fitted with a Peltier cell holder, the J-1100 be used for measurement of CD, LD and absorbance as a function of wavelength, temperature, and time.... Read More | 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 V-760 UV-Visible Spectrophotometer includes a double monochromator for exceptional resolution with extremely low stray light (0.00008 %) for more accurate measurement over the widest photometric range (up to 8AU). The V-760 provides excellent sensitivity for diffuse reflectance or transmittance The V-760 UV-Visible Spectrophotometer includes a double monochromator for exceptional resolution with extremely low stray light (0.00008 %) for more accurate measurement over the widest photometric range (up to 8AU). The V-760 provides excellent sensitivity for diffuse reflectance or transmittance of solid and liquid samples using an integrating sphere. For high resolution measurements, such as gas and vapor phase spectroscopy, the spectral bandwidth can be set as narrow as 0.1 nm. Extended photometric linearity up to 8 Abs enables measurement of highly absorbing samples and is also useful for measurements of optical material with transmission characteristics that approach 0% T.... 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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