Cary 5000 UV-Vis-NIR Spectrophotometer


The Cary 5000 can be used to achieve significant performance breakthroughs across a range of applications; from simple optical absorbance and reflectance measurements in the wavelength range (175-3300 nm) for solid and liquid samples to quantifying out-of-band blocking characteristics of band pass filters and also measuring the high transmission of next generation fibre optic materials.

Salient Features:

Wavelength Range 175-3300 nm

Optical Isolation System Solid aluminium casting that isolates the optics from external     disturbances. i.e. laboratory environment won't affect your instrument's performance. Pb smart technology where PbS NIR detector provides best noise and linearity performance

Schwarzchild Coupling Optics: Ensures the maximum level of light throughput resulting more accurate measurements at low transmission levels

Variable and Fixed slits: Allows optimum control over data resolution. The spectral bandwidth can be set down to 0.01 nm. The slits can be fixed in the NIR as well as the UV-Vis regions

Out-of-plane double Littrow monochromator Minimizes photometric noise and stray light, providing excellent resolution

Advanced electronics design: The instruments can typically measure beyond 8 Abs with reference beam attenuation

Nitrogen purging: Monochromator and sample compartments have separate nitrogen purging capabilities, allowing the sample compartment to be purged at a higher rate than the instrument.

Praying Mantis Diffuse Reflection Accessory (DRA)

           Praying Mantis is the diffuse reflectance accessory that is used for easy and reliable diffuse reflection analysis of solids and powders. It incorporates two 6:1, 90° off-axis ellipsoids which form a highly efficient diffuse reflection illumination and collection system. This unique configuration deflects the specular reflectance away from the collecting ellipsoid, minimizing the associated spectral distortions. The Praying Mantis also can be configured to study materials and reactions in controlled environments with the appropriate diffuse reflectance reaction chamber.


Department of Chemical Engineering, CL 201B
IIT Kanpur


Prof. Goutam Deo

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