Page 5 - General Brochure EN

Latest Deuterium lamp generation provides: highest stability, long-life and highest intensity.
High Stability Long-Life and High Intensity Deuterium Lamps
Spectral Comparison Deuterium Lamp
Intensity (%) 250
Using the latest material and process technologies, Heraeus 225
new lamps combine lifetime more than 2,000 hours with unmatched output stability and intensity over their entire life. This sets them apart from other long-life lamps on
the market and makes them the ideal choice for high-end (U) HPLC instruments or UV-Vis Spektrophotometer.
35 W Deuterium lamps – the perfect fit
Heraeus latest generation deuterium lamps serve different needs and applications:
The “Enhanced Lifetime Performance (ELP)” technology for Heraeus with a high transmissive synthetic quartz envelope, maintain twice the residual intensity compared to standard D2 lamps at the end of life. The patented ELP coating protects the light emitting part against degradation caused by VUV radiation and reactive plasma components. See-Through versions of all lamps available See-through lamps offer a straight-line arrangement
200 175 150 125 100
75 50 25
D2plus series quartz bulb D2plus series glass bulb standard lamp
0
160 180 200 220 240 260 280 300 320 340 360 380 400
Optical Stability at 254 nm
noise (μAU) 10
8 6 4
Wavelength (nm)
standard lamp
D2plus series
of a tungsten halogen lamp and a deuterium lamp in
an optical system. Simplification and cost reduction of
UV-Vis spectrophotometers can be achieved using this
approach, for example, by elimination of a moveable
mirror or a semi transmissive beam splitter. See-through 2 lamps offer the same unmatched high stability and are
available with the same diversity of heater voltages and 0 aperture sizes.
Different spectral ranges available:
lamps are available either with UV-Glass envelope (cutting edge 185 nm) or with high transmissive Quarz envelope (cutting edge 160 nm), providing maximum performance depending on your applications or instru- ment design.
Vacuum UV (VUV) Deuterium Lamps
VUV lamps are deuterium lamps with a MgF2 or a Synthetic Silica window allowing the transmission of VUV radiation down to 115 nm. Heraeus offers end emitting and side emitting lamps with 30 W as well as the 200 W type is water-cooled high power version, which is also available with flanges for mounting on a vacuum chamber.
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