Sentence examples for purity needs from inspiring English sources
When Danton meets with Robespierre to discuss his fate, he at first tries to tease his friend out of his fantasy of purity ("I'd be disgusted with myself if I spent thirty years with such a self-righteous expression stuck on my face"), then to reason with him ("Purity needs vice, if only for contrast"), and, finally, to draw his attention to the facts about which Robespierre has befogged his mind.
As is the case in the study of any membrane protein, the protein needs to be supplied in sufficient amount and purity, needs to have a specific isotope labeling scheme, and needs to be properly folded and reconstituted.
It would take relatively little additional work to get that fuel to the 90 percent purity needed for weapon fuel.
Mr. Abbasi was further quoted as saying that other uranium enrichment activities would be restricted to much lower levels of purity needed to fuel power generation reactors.
European officials said Iran had refused to suspend the enrichment of uranium to 20 percent purity, a level considered a short technical step to the higher level of purity needed for weapons-grade fuel.
In its report, the International Atomic Energy Agency said that it had found no evidence that any of the fuel in Iran's possession had been enriched to the purity needed to make a bomb, a step that would take months.
Western diplomats hope the Baghdad talks will make progress towards a confidence-building deal by which Iran would stop making 20% enriched uranium, a more concentrated material than the fuel used in modern power stations, which is closer to the level of purity needed for making weapons.
That's a salable product, but Simbol is shooting for the top of the market the extremely high purity needed for electric-vehicle batteries.
The crucial issue is Iran's capacity to enrich uranium to the 90percentt purity needed for weapons.
Iran's production of that higher-grade uranium worries the major powers because it is only a short technical step away from the 90-percent purity needed for a weapon.
The difficulty of analytical separation, quantities, and purity needed for both in vivo and in vitro experiments have limited the progress of toxicity studies examining individual HBCD stereoisomers.
