How to exclude duplicate records while using incremental Api

Hi ,

lets say there are 8 tickets and I am using incremental ticket Api to get the records with a start time , I will using the Updated_at as the start time for the next poll of getting records , here if I use the end_time or the updated_at of the last record , in the next poll the last record or the previous poll is present . is there a way to perform say 

api/v2/incremental/tickets.json?start_time=(some posix time)&sort_by=updated&id>8;

is there way to obtain records whose ids are greater than a value .