Contents
iii
Chapter 6 Entering a Method
Entering a Method ................................................................................................... 60
Entering Zone Temps ...................................................................................... 60
Setting Event Times ........................................................................................ 61
Setting Vial Parameters .................................................................................. 63
Storing and Loading Methods ................................................................................ 64
Storing a Method ............................................................................................. 64
Loading a Method ............................................................................................ 64
Chaining Methods .................................................................................................... 65
Activate a Method Chain ................................................................................ 65
Deactivate a Method Chain ............................................................................ 66
Using a Method Chain for MHE ............................................................................. 66
Using a Method Chain for Running More Than 44 Samples .............................. 66
Chapter 7 Developing Methods
Varying Oven Temperature .................................................................................... 71
Varying Event Times ............................................................................................... 71
Vial Equilibration Time ................................................................................... 71
Loop Fill Time .................................................................................................. 72
Matrix Effects .......................................................................................................... 72
Changing the Sample Loop .................................................................................... 73
Sample Size .............................................................................................................. 73
Vial Pressurization and Time ................................................................................ 73
Vial Pressurization .......................................................................................... 73
Vial Pressurization Time ................................................................................. 74
Optimizing Carrier Gas Flow ................................................................................. 74
Recommended 6890/6850 GC Liner ...................................................................... 75
Chapter 8 Running a Sample
Setting Conditions ................................................................................................... 78
Flow Rates ........................................................................................................ 78
Setting the Carrier Gas Flow Rate for the G1883/G1290 ............................ 80
Setting the Vial Pressurization Gas Pressure for the G1883/G1290 ....... 81
Setting Carrier and Vial Pressurization Flows for the G1289 .................... 81