Of course, this is the standard procedure all over european airports (don´t know about turboprops). Type II/IV fluids when heated (60ēC) and diluted may be used for deicing and antiicing in a single step.
If you want to know more check:
http://www.boeing.com/commercial/aer.../aero_08/deice
www.aea.be
www.alpa.org/internet/alp/2000/nov00p15.htm