Imprest account for advance to employee

Dear All,

                   Is it possible to implement imprest account system for cash advance issued to employee for purchasing raw materials ? Actually i was trying to implement it but when i am trying to pass the entry for adjustment of Imprest account in the purchase voucher in tally it is not showing the imprest a/c in the ledger accounts list. That's why i am unable to adjust imprest amount earlier issued to employee. I have treated imprest account as current asset. Please revert.