例句與造句

1. Mendelevium can finally be separated from the other trivalent actinides using selective elution from a cation-exchange resin column, the eluant being ammonia ?-HIB . Using the gas-jet method often renders the first two steps unnecessary.
2. It is then reoxidized to the + 3 state using hydrogen peroxide and then isolated by selective elution with 2 M hydrochloric acid ( to remove impurities, including chromium ) and finally 6 M hydrochloric acid ( to remove the mendelevium ).
3. More recent methods have allowed rapid selective elution with ?-HIB to take place in enough time to separate out the longer-lived isotope 260 Lr, which can be removed from the catcher foil with 0.05 M hydrochloric acid.
4. It's difficult to find selective elution in a sentence. 用selective elution造句挺難的