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Ultraviolet fluorecence sulfur analyzer


SPECTROSCAN UFS is for determination of  the mass fraction of sulfur in liquid homogeneous oil products such as diesel fuel, gasoline, kerosine and any distillate oil products in accordance to ASTM D 5453-09 and also for testing the automotive fuel of 3rd, 4th and 5th class in terms of mass fraction of sulfur, in accordance with the technical regulations "On requirements for automobile and aviation gasoline, diesel and marine fuel, jet fuel and fuel oil."

The principle of the analyzer is based on the method of ultraviolet fluorescence.

The test sample is injected into the combustion chamber where at a temperature of 1000-1100 ° C in an oxygen-rich atmosphere, the sulfur presented in the sample is oxidized to sulfur dioxide. The combustion chamber is connected by a gas main to a measuring block where the formed gases are exposed to UV light. Sulfur dioxide, presented in gases, absorbing the energy of UV light, is converted into excited sulfur dioxide. Fluorescence emitted from excited sulfur dioxide when it is converted to a stable state is detected by the photomultiplier and the detected signal is proportional to the mass fraction of sulfur in the sample.

The mass fraction of sulfur is calculated  by  the previously constructed calibration characteristics, which is the dependence of the mass fraction of sulfur on the measured intensities of the fluorescence signal, in accordance with measurement methods (techniques).


Technical details

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