HPLC separations involve both the mobile phase (a liquid) and the stationary phase. (usually materials of varying hydrophobicity chemically bonded to a solid support). In. contrast, GC uses the mobile phase only to carry the analyte through the column.
Pulling Data off old HDD. You can get an IDE-to-USB interface, then connect it to your desktop via USB cable. It doesn't matter whether there's an operating system on the hard drive, it will be formatted as an NTFS file system, you just navigate to the files you want and copy them to your desktop's hard drive.
An external USB hard drive is useful for data backups and transferring files between computers. We recommend regularly backing up your data so your important personal files will remain intact in case of hard drive failure in the computer. The backup process is different for Apple and Windows systems.