Hitachi's unique technologies -- 3D optical axis design, new beam-collecting mirrors, slit flow cells, and optimized transmission beam monitor -- have realized an optical system that significantly reduces loss of light. With this "bright" optical system, the L-2485 detector can provide a S/N ratio of 900 or over (using a baseline for Raman spectrum of water).
Ultra-high sensitivity: S/N 900 or over (using a baseline for Raman spectrum of water)
Variable slit widths: The slit width is switchable between 15 nm and 30 nm, providing greater sensitivity.
Automatic wavelength check: With a built-in Hg lamp, the L-2485 performs automatic wavelength check.
GLP compliance: Lamp energy check, lamp usage log, lamp replacement log, and wavelength accuracy.
Flexibility to accommodate to various analytical applications: Time programming for excitation/emission beams is supported. You can also select from a wide range of wavelengths and functions to collect and save excitation/emission spectra.
Front panel access for maintenance: User maintenance parts (e.g., Xe lamp and flow cell) can be easily accessed from the front panel.
Specifications
L-2485 Fluorescence Detector Specifications
Optics
Ratio-beam photometric detector using transmission light
Light source
150-W Xe lamp
Hg lamp for wavelength check
EX wavelength range and bandwidth
200 to 850 nm
15 nm
EM wavelength range and bandwidth
250 to 900 nm (over 731 nm requires PMT exchange)
15 nm and 30 nm
Sensitivity
S/N: >900 for Raman spectrum of water
(EX: 350 nm; time constant: 2 sec; bandwidth:30 nm; baseline method)
Dimensions
13.5 in (W) x 15.75 in (D) x12.0 in (D)
(340 mm (W) x 400 mm (D) x 300 mm (D))
