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Analyzer trace uranium
1, the detection limit: 0.05ng/ml b (5 10-11g/ml).
2, the measured uranium range :0-20ng / ml for the higher concentrations of the samples requires appropriate dilution.
3, Accuracy: less than 5% (1 ng / ml measurements).
4, linear correlation coefficient: r 0.998.
5 Stability: 1 ng / ml two hours of determination of the stability of the sample is not more than 10%.
6, sample volume: 5ml sample +0.5 ml J-22 reagents (each measurement).
7, excitation source: a small sealed nitrogen molecular laser.
Instrument working conditions:
1, power supply voltage of 220V 5%, 50Hz 0.5Hz, a larger region in the voltage need to use the exchange regulators.
2, the working temperature should be 10 - 35 , this is because the J-22 reagents in less than 0 when the crystal.
3, on the Preparation of blank and standard samples used in secondary distilled water or deionized water, the amount of uranium-containing checks, blank values should not exceed 0.01-0.02 ng / ml uranium.
WGJ- laser uranium analyzer uses laser fluorescence method to measure liquid samples of trace uranium, uranium in the liquid with uranyl ion (uO2) 2 + exists, with the addition of a special J-22 uranium fluorescence enhancer, uranyl ion envelope so that efficient synthesis of a single fluorescent complexes. The complex molecules by a small sealed nitrogen laser shot irradiation of UV laser pulses, resulting in 5000,5220,5460 A0 fluorescence wavelength. This characterization of the fluorescence intensity of the uranium content of samples.
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