ICP-OES method for determination of content of tungsten in ferrotungsten
A technology of ICP-OES and tungsten content, applied in the direction of material excitation analysis, thermal excitation analysis, etc., can solve the problems of X-ray fluorescence spectrometry, such as complicated and harsh sample preparation, many analysis reagents, and long analysis period, so as to achieve clear solution without precipitation, The effect of low reagent consumption and short analysis cycle
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[0028] 1. Instruments and working conditions:
[0029] Optima 5300DV plasma emission spectrometer (manufactured by American PE company)
[0030] Instrument working conditions: Echelle grating dual optical path two-dimensional dispersion spectroscopic system and plasma two-way observation system; the high-frequency generator is a 40.68MHz self-excited solid-state radio frequency generator; the torch is a quartz torch, and the material of the injection tube is oxidized Aluminum, the atomizer is an orthogonal atomizer; corundum gemstone nozzle, the spray chamber is Ryton material, Scott type corrosion-resistant spray chamber; the sampling system can withstand 20% hydrofluoric acid (V / V); working gas (Ar), The atomization gas flow rate is 1.0L / min, the plasma gas flow rate is 15L / min, and the auxiliary gas flow rate is 0.5L / min; the forward power is 1.2KW, and the axial observation is adopted, and the peak area is integrated.
[0031] 2. Main reagents:
[0032] Mixed acid soluti...
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