PerkinElmer TORION T-9, Руководство пользователя

Страница: 66 / 276

62 . Torion T-9 User’s Guide
NOTE: Blank runs should look like the chromatogram shown above (only a single small peak is present at
approximately 1.0 on the x-axis). Sometimes if a SPME fiber is contaminated, it will take a few
injections to clean. If after a few injections the runs are not cleaning up, replace the SPME fiber.
6. The end run data should look the same as the system blank.
• If there are peaks or if compounds are identified and displayed in the report a second
blank analysis should be performed.
•
If there are still peaks after several injections and the system blank was clean then try
using a new SPME fiber.
To thoroughly clean the old fiber:
a) Place it in the injection port while the system is not in analysis mode.
b) Expose the fiber by clicking the plunger on the SPME syringe and leaving the exposed
SPME fiber in the injection port for 1 to 2 minutes.
c) Press the plunger again to retract the fiber into the SPME syringe needle and withdrawal
the SPME from the injection port.
d) Perform a System Blank run and a ‘blank’ Sample run to ensure that the fiber is clean.