Circular Dichroism

Circular Dichroism Spectrophotometer


J-1700 Circular Dichroism SpectrophotometerThe J-1700 Circular Dichroism Spectrophotometer was specifically designed for more demanding near-infrared CD applications. In addition to the enhanced far-UV capabilities, researchers probing the chiral activity of molecules in the NIR spectral region now have the ability to obtain data at wavelengths up to 2,500 nm. The InGaAs detector has a wavelength range from 900 – 2,500 nm, while the PMT ranges from 163 – 960 nm. The automatic detector interchange allows researchers to obtain both far-UV and NIR measurements without having to manually switch detectors. The addition of a grating monochromator to the double-prism monochromator setup provides low stray light and high light intensity, generating CD signals with high S/N performance throughout a large spectral range.

NIR-CD applications vary from conformational and chirality studies of metal coordination complexes to tuning the chiral properties of nanomaterials. Additionally, Magnetic Circular Dichroism (MCD) can be used in conjunction with NIR-CD to probe a chromophore’s electronic structure as well as to induce chirality in compounds.

J-1000 Series Models

  • The basic, compact model for research, QA/QC, and teaching applications.


  • Highest performance with a wide range of accessories for maximum flexibility to meet complex research demands.


  • UV/Visible/NIR measurements up to 2,500 nm for MCD and specialized applications.


  • Automated high-throughput screening system for use with the J-1500/1700.

    High-Throughput CD