Is there a way eject a Network mount

[Gary@tmi]

I have created a scheduled backup to a disk image on a network volume. SD mount the Network volume and then the disk image without issue. However, even thought the disk image is ejected after the copy, the network volume is not eject. I would also like the Network volume ejected after the copy is completed.

I have created a simple apple script to eject the network volume, but can't figure out a way to run the script AFTER the disk image is ejected. Run script after copy, runs before the disc image is ejected, so the script fails.

Is there a way to eject the network volume after the target disk image is ejected?

Thanks
Gary