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    Room 1015,Beijing Research Institute of Meha-
    nical & Electrical Technology,No.18 Xueqing Road,
    Haidian District,
    Beijing,P.R. China 100083

    T90 UV/VIS Spectrophotometer


    Excellent performance: The high-performance diffraction grating and the optimized CT-Type monochromator reduce the stray light of the T90 , and widen the photometric range.

    Ideal baseline stability: A double-beam dynamic feedback ratio-recording photometric system coupled with an efficient electronic control system ensures high stability of the instrument baseline.

    High resolution: The unique full-transmission and full- reflection optical design provides a double beam optical system and enhancements the light energy of the instrument to reduce noise and guarantee high resolution.

    Accurate wavelength: The automatic wavelength control system and the automatic light sensors ensure wavelength accuracy and high performance of the instrument.

    Easy accessories replacement: The modular structure of the sample chamber enables change to a wide range of optional accessories and ensures accurate analysis of various samples types.

    User-friendly construction: The open type design of the light source chamber, deuterium lamp and tungsten halogen lamp facilitates easy light source replacement, simplifies maintenance and reduces operational error.

    Versatile application software: The UVWin application software on a Windows platform offers vast operational and data processing capability, presenting the user with up-to-date compurer technology.

    The key components: all employ world- proven technology, such as the deuterium lamp, PMT and Holographic grating to ensure the stability and reliability of the instrument for extended life.


    Optic System--- The Czerny-Turner monochromator configuration with high-resolution diffraction holographic grating.

    Wavelength Range: 190nm-900nm

    Spectral Bandwidth: 0.1nm, 0.2nm, 0.5nm, 1.0nm, 2.0nm, 5.0nm

    Stray Light: 0.01%T (220nm Nal)

    Wavelength Accuracy: +/- 0.3nm (automatic correction)

    Wavelength Reproducibility: 0.1nm

    Light Source: Automatic interchange (selectable within the working range of light source)

    Photometric System---The double-beam ratio recording system

    Photometric Method: Transmittance, absorbance, reflectance, energy, concentration.

    Photometric Range: -4.0-4.0Abs

    Photometric Accuracy: 0.3%T (0-100%T) +/-0.002Abs (0-0.5Abs) +/-0.004Abs (0.5-1.0Abs)

    Photometric Reproducibility: 0.00lAbs (0-0.5Abs)

    Baseline Flatness: +/-0.00lAbs

    Baseline Stability: 0.0004Abs/h (500nm, after preheating)