an argon atmosphere, as pure as possible

[piedina]

Can I write so ...?Or is it just better by speaking?

The sample are melted in an argon atmosphere, as pure as possible.
Thanks!!!!!

 

[entangledbank]

Yes, that's fine in speech, though I think in scientific writing you might integrate it into the noun phrase: perhaps, in as pure an argon atmosphere as possible; or in an argon atmosphere of the highest possible purity.

 

[bibliolept]

Piedina, what's the full sentence? Knowing that is necessary to give you the best answer possible.