Suspension and Opaque Sample Measurement


The measurement of suspension samples is difficult due to the scattering of reflected light by fine particles in solution. This prevents 100% of the light from reaching the detector, making it more difficult for a clear spectrum to be obtained. Accessories used in this type of sample measurement are integrating spheres. As shown in the figure below, the integrating sphere method utilizes a barium sulfate-coated sphere to draw the scattered light inside so that all light reaches the detector.

ISR-240A Integrating Sphere Attachment
ISR-240A
  • Angle of incident light: 0°
  • Wavelength range: 240 to 800 nm
  • Maximum size of reflection sample:
    40 mm W x 70 mm H x 10 mm T or
    70 mm W x 70 mm H x 5 mm T
  • Cell holder for transmission sample:
    with holder for 10 mm square cell (excluding cell), 2 sample plates for BaSO4 standard white board, 2 plates for powder samples
  • For UV-2450/2550/3600

ISR-2200 Integrating Sphere Attachment
Diffuse and spectral reflection can be measured without using special attachments by combining a 0°/8° incident integrating sphere with the S/R exchange function of the spectrophotometer. Since the size of the flux of the reflection measuring unit can be altered, micro samples with a minimum flux size of 2 x 3 mm can be measured. The flux size of the transmission measuring unit also can be closed down to about 3 x 3 mm.

  • Angle of incident light: 0°/8°
  • Wavelength range: 220 to 850 nm
  • Maximum size of reflection sample:
    70 mm W x 70 mm H x 20 mm T (0° angle of incidence side)
    70 mm W x 70 mm H x 12 mm T (8° angle of incidence side)
  • Cell holder for transmission sample:
    with holder for 10 mm square cell (excluding cell), 2 sample plates for BaSO4 standard white board, 2 plates for powder samples
  • For UV-2450/2550/3600
ISR-3100 Integrating Sphere Attachment
  • Angle of incident light: 0°/8°
  • Wavelength range: 220 to 2600 nm
  • Maximum size of reflection sample:
    about 100 mm dia. x 15 mm T
  • Cell holder for transmission sample:
    with holder for 10 mm square cell (excluding cell), 2 sample plates for BaSO4 standard white board, 2 plates for powder samples
  • For UV-3600
ISR-2600/ISR-2600Plus Integrating Sphere Attachment
  • Angle of incident light: 0°/8°
  • Measurement wavelength range:
    ISR-2600 220 to 850 nm, ISR-2600Plus 220 to 1400nm
  • Maximum size of reflection sample:
    70 mm W x 70 mm H x 20 mm T (0° angle of incidence side)
    70 mm W x 70 mm H x 12 mm T (8° angle of incidence side)
  • For UV-2600
Note: ISR-2600 can be used with UV-2700.

For Research Use Only. Not for use in diagnostic procedures.