Which is the test to know if any other semen is present in her... and up to what time we can determine this... what is the cost and name of the test... please mention

Thanking you

What do you need this for exactly?

Normally done in a rape kit, it is effective up and till she has bathed and washed.

It is not something you can have done to someone else,

Sounds like you have a wife or girlfriend that you think is cheating.

This is not the way to prove it. Sorry, all she has to do is properly clean after sex and there is no evidence.