We change to 2 naps at 8 month old, and considering to change to 1 nap now (
11 month old). Baby can be awake for longer and longer time when they grow
older, so you right now you can try to let her go for a 1 hour nap during
morning time, and 1.5 hour nap during afternoon time.
BTW: babies are smart. My baby doesn't go to sleep when I try to get him
down. He can play for up to 2 hours before napping. But with my husband, he
always falls in asleep within 20 minutes...