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.
Once again, select the device you wish to remove and click on the OK button. A pop-up window displays notifying you that it is now safe to remove the device. You can either close the pop-up window or it will close by itself. You can now power down/disconnect your external drive from your computer.