Determination of hydrogen content of hafnium by inert gas fusion infrared method

Using LECO-NH836 nitrogen-hydrogen analyzer, the sample was melted in an inert atmosphere, and the content of hydrogen in hafnium was detected by the infrared method. By choosing 1.00 g nickel basket as the flux of hydrogen release in hafnium, the influence of different analytical powers on the hydrogen content analysis was studied. The analysis power of 5 000 W, the shortest analysis time of 60 s, and the sample mass of 0.10 g were selected to verify the applicability of titanium reference materials.The RSDs of 11 replicates of the two samples were 5.64 % and 1.52 %, respectively, with good precision.The spiked recoveries ranged from 95.18 % to 105.26 %. The result of the study is instructive for the accurate determination of hydrogen in hafnium.