Spectrophotometer

Spectrophotometers are used to measure the concentration of a known substance in a solution. They do this by passing a light through the substance and measuring light intensity as a function of wavelength. Either single beam or double beam spectrophotometers can be purchased. In a single beam spectrophotometer, a reference standard is used to measure light intensity before and after the sample is loaded. For double beam spectrophotometers the beam is split with one beam passing through the standard and the other through the sample to compare intensities. While single beam spectrophotometers are typically less expensive and have higher sensitivity, double beam spectrophotometers tend to be more stable and easier to use. Spectrophotometers are important pieces of equipment in chemistry, physics, biochemistry, clinical, and materials testing labs.

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CompanyJASCOJASCOJASCOJASCOJASCO
ItemJ-1700 Circular Dichroism SpectrophotometerCPL-300 Circularly Polarized Luminescence SpectrophotometerFVS-6000 Vibrational Circular Dichroism SpectrometerV-750 UV-Visible SpectrophotometerV-760 UV-Visible Spectrophotometer
Citations
Figures
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Catalog NumberJ-1700CPL-300FVS-6000V-750V-760
Price
TypeCircular DichroismCircularly Polarized LuminescenceCircular DichroismUV-VisibleUV-Visible
Wavelength Range163 to 2500 nm (Option: 163 to 950 nm (PMT) / Option: 900 to 2500 nm (InGaAs)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)190 to 900 nm187 to 900 nm
Wavelength AccuracyInquireInquireInquire±0.2 nm (at 656.1 nm)±0.1 nm (at 656.1 nm)
Scanning Speedup to 10,000 nm/minup to 10,000 nm/minInquire10 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 Bandwidth0.01 to 16 nm (163 to 950 nm) / 5, 10, 20, 30, 40, 50 nm (950 to 2,500 nm)InquireInquire0.1, 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)
Optical SystemDouble-prism polarizing monochromator and grating monochromatorDouble prism monochromators for both excitation and emission optics / Piezoelastic modulator / Lock-in amplifier28° Michelson interferometer, with gold coated corner-cube mirrors. mechanical bearing, temperature stabilized / KRS-5 Polarizer /Czerny-Turner mount
Double monochromator
Fully symmetrical double beam type
Czerny-Turner mount
Single monochromator
Fully symmetrical double beam type
Light Source150W air-cooled Xe lamp or 450W water-cooled Xe lamp150W Ozone-free air-cooled Xe lamp (Option: 150W air-cooled HgXe lamp)High intensity ceramic source, insulated mountHalogen lamp, Deuterium lampHalogen lamp, Deuterium lamp
ResolutionWavelength Resolution: 0.025 nm / CD Resolution: 0.00001 mdegWavelength Resolution: 0.025 nm
CPL Resolution: 0.00001 mdeg
0.5 to 16 cm-1=BS9=BS10
DescriptionThe 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... Read MoreThe 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 ... Read MoreThe 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 ... Read MoreThe 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 ... Read MoreThe 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 ... Read More
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