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Circular Dichroism Spectropolarimeters

Jasco J-1500CDJASCO J-1000 … Opens the Door to the Future of Circular Dichroism

Chiroptical spectroscopy has become one of most important techniques for the characterization of biomolecules, determination of absolute configuration and stereochemical analysis. Since launching the Model AP-1, our first spectropolarimeter in 1961, JASCO has designed and built the finest in chiroptical instrumentation. Based on JASCO's experience in CD instrumentation over a half century, JASCO proudly introduces the J-1000 Series Circular Dichroism (CD) Spectrometers providing both unparalleled optical performance and versatile flexibility.

The latest Quad Lock-in Amplifier allows the simultaneous acquisition of up to four data channels including CD, Absorbance, Linear Dichroism (LD), Fluorescence, Fluorescence detected CD (FDCD), Fluorescence detected LD (FDLD), Fluorescence Anisotropy and Optional Rotatory Dispersion (ORD). The following figure shows the multi-probe measurement of Lysozyme showing the simultaneous acquisition of CD, Abs, Ex Fluorescence and Em Fluorescence during a thermal ramping experiment.

Designed as a “Chiroptical Spectroscopy Workbench” the J-1500 offers a wide range of accessories to allow it to be adapted to any application requirements. Temperature ramping, protein folding, enzyme kinetics, DNA/RNA interactions, natural organic chemistry, biochemistry, macromolecules and rapid scanning experiments are all possible.

The J-1100 offers the basic cell holders for general CD/LD/Abs and Temperature control measurements.


•Wide spectral range from vacuum UV to Near-IR (up to 1600 nm, only J-1500)
•Standard built-in mercury lamp and optional NIST traceable standard sample for system validation
•High-efficiency purge capability enabling to enhanced vacuum UV measurement
•Extremely low stray light and high S/N ratio providing wide dynamic range
•High speed scanning (J-1500: 10000 nm/min, J-1100: 5000 nm/min)
•Simultaneous Multi-probe measurements (SMP) with acquisition of up to four data channels
•Flexible design allowing field upgrades for different measurement modes and accessories as applications evolve
•Spectra Manager II or Spectra Manager CFR (For FDA regulated labs): 64 bit innovative, cross-platform Spectroscopy
•Software Suite for data acquisition, analysis and presentation including several methods of secondary structure calculation


Kontakt: Mikael Alfredsson på Göteborgskontoret, 0709-119309
              Mats Grapne Askfelt på Stockholms-kontoret, 0709-119301
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