If you wish to retrieve your vials after all their analyses have run, select 'Retain in Buffer'. Ask your system administrator to send those vials to the Collection Point, for you to retrieve them.
Vials for collection are deposited in the Collection Point. Remove the plastic container from thebottom of the device, empty out the vial(s), and replace the container promptly.
As all the vials for collection are sent to this same collection point, you will need to barcode read the vials if there are several there and you know you do not want them all. Leave the others in the collection bin for their owners to retrieve.