How to destroy particles created with Emit method?

I am using the Emit method of the shuriken particle system to create single particles, and it works fine, but i want to choose when destroy them and i am trying the Clear method but it does not work, and either the stop method.

 

Can you post what you've tried with Clear()?

 

i am trying a different approach now, not using particles, just want to know if clear should clear the particles emitted by the Emit method or not, if not it must be an error in my code logic