LABORATORY FORTIFIED BLANK (LFB) - An aliquot of reagent water or other blank matrix to which known quantities of the method analytes and all the preservation compounds are added.
add a comment |. up vote 2 down vote. 1  Go to the command line and get into the directory you want to move it to with cd folderNamehere. 2  Type pwd. 3  This will print the directory you want to move it too.4  Then change to the directory where all of the files are with cd folderNamehere.dd a comment |. up vote 2 down vote. 1  Go to the command line and get into the directory you want to move it to with cd folderNamehere. 2  Type pwd. 3  This will print the directory you want to move it too.
Step 1: Open Command Prompt. First of all, go to the start menu and from there, open the command prompt window. Step 2: Change directory. We can go to any command prompt directory from here. For the purpose of this tutorial, let us say that we want to open the program files.In order to do so, type in Cd program files.Cd is the command used in command prompt for changing the directory.tep 1: Open Command Prompt. First of all, go to the start menu and from there, open the command prompt window. Step 2: Change directory. We can go to any command prompt directory from here. For the purpose of this tutorial, let us say that we want to open the program files.