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.
1 If the external drive has a power button, turn the drive on. 2  Wait a few seconds, and connect the data cable (USB or Firewire only) directly to the computer. 3  Do not use a USB/Firewire hub or other device. 4  It is also possible that you may have a bad data cable.