Hellow, every body. We have one serous problem of the separation of Dibutyl phoshate (CAS NO. 107-66-4) and Tributyl Phospahte(CAS No. 126-73-8 . We have tried several columns for this like DB-1 DB-WAX, DB-1701 and DB-624 but both are co-eluted .
We want them separate so which GC stationary phase is suitable for it?
Either any derivatization technique is suitable for the separation

Praveen