Method for analyzing niobium and titanium in radioactive organic phase
An analytical method and radioactive technology, applied in the field of analytical chemistry, can solve the problems of volatilization loss of the element to be tested, affecting the accuracy of the results, long digestion time, etc., achieving the effect of less reagent consumption, simple sample pretreatment, and good digestion effect.
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[0057] (1) Instrument parameters in the present invention are: radio frequency power 1300W; Plasma gas flow rate 15L / min; Auxiliary gas flow rate, 0.2L / min; Atomizer flow rate 0.8L / min; Rinse time 1.5min; Pump speed 2.5mL / min min; observation height 15mm; repeat times 2 times.
[0058] (2) Determination of microwave digestion agent: the dosage of nitric acid is 5-10mL; the dosage of hydrofluoric acid is 0.1-2.0mL; the dosage of tartaric acid is 0.1-0.3mL, and other conditions remain unchanged. Such as Figure 1-3 As shown, through the determination of niobium and titanium, the optimal dosage of digesting agent is obtained: the dosage of nitric acid is 8mL, the dosage of hydrofluoric acid is 1mL; the dosage of tartaric acid is 0.2mL.
[0059] (3) if Figure 4 As shown, the microwave digestion program is determined: put the microwave digestion tank into the microwave digestion apparatus, cover the lid, and close the doors and windows of the digestion apparatus. Set the microwav...
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