You can remove TFA by evaporating it under reduced pressure. It could help to use dichloromethane or water to co-evaporate it.

wash with saturated NaHCO3 solution.

Reduced pressure is a best way, I agree with.

Boiling point of TFA is ~74 oC so that it can be easily removed under reduced pressure. Moreover, as it is suggested already, co-evaporation with diethylether or DCM is also recommended. NaHCO3 wash will not help you rather will reduce the yield of your product ( which has a carboxylic functionality)

You have to add some solvent like DCM or diethyl ether and evaporate to dryness iteratively (4 to 5 times). then TFA will be out of your mixture. Sometimes evaporating at 40 degrees C and under reduced pressure at the rotavapour creates some problems like your compound may decompose in those acidic conditions at that temp. you have to try it out on a small scale. or else washing with NaHCO3 solution is an alternative.. all the best

As Mr. nagarajan said, you can easily remove TFA under reduced pressure by co-evaporation with Et2O.if your compound don't form salt with TFA one can try a filter column chromatography over silica gel. even though aromatic amine can also be purified using column ...........

Even co=evaporation with Toluene will help removing excess TFA in the reaction mixture. Later if u need to do a work up, u can give a wash with dilute triethyl amine solution which will not harm your carboxylic acid.

Thanks all of u 2 reply..............

You can use Ion exchange resin, as Amberlite IRA 400.

See synthesis of drugs in www.drugsyn.org

If your compound is water insoluble you can even wash your compound with water of any solvent in which it is insoluble

It can be removed using rotavac, co-solvents can be used for the same.