There are so many arm workouts out there but here is a sample of one of the arm workouts i enjoy.
1-3 warmup sets of 12
4 sets of 15,12,10,8 ensuring you squeeze and use perfect form.
1-3 warmups sets of 10
4 sets of 8 reps, palms up the entire movement with a 2 second descent.
DB Kick backs
3 sets of 12 ensuring you use a heavy weight but do no sacrifice form and squeeze at the end of the movement
3 sets of 7, after those 7 do 5 partial reps out of the bottom part of the movement ever set.
3 sets of 12
3 sets of 10, at the bottom of the movement let the dumbell sort of rotate in, you will know what im talking about once you start feeling it in your lower bicep.
Give that a go and let me know how you like it or dont like it.