The activity after irradiation is 10 Ci (Hf-175, T1/2 = 70 d). I. What amount must be sent (in ml) (delivery time 5 days) so that the customer receives1 Ci (20GBq / ml), also II. calculate the amount of 0.04M HCl that must be added to the initial activity.

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.