PerkinElmer AVIO 500, Руководство по оборудованию и обслуживанию для клиентов

Страница: 329 / 355

327
Performance Problems: Troubleshooting Table
Problem Possible Cause(s) Corrective Action
Undetectable
emission
signal The sample introduction
system may not be set up
correctly, or may require
maintenance. Refer to General System Maintenance on
page 296 .
The shutter may be closed. Check the shutter position set in the software.
Refer to the Syngistix Software Guide on the
Syngistix Document Pack CD for details
.
Memory
effects Spray chamber may not be
being drained properly, or
may need cleaning. Check drain fittings and drain tubing. Clean
the spray chamber if necessary.
Cannot get
suggested
detection
limits The sample introduction
system may not be set up
correctly, or may require
maintenance. Refer to General System Maintenance on
page 296 .
The BEC may be high. Run the BEC test. Refer to the Syngistix
Software Guide on the Syngistix Document
Pack CD for details
.
Look for carryover – check if
concentrations for the sample
replicates increase from one
to the next. Increase the Read Delay to flush the sample
introduction system completely. Refer to the
Syngistix Software Guide on the Syngistix
Document Pack CD for details
.
The standard and blank may
need to be matrix-matched. Prepare the standard and blank in the same
acid matrix used for the samples.
The integration time may be
too short. Increase the minimum and maximum times
for integration. Refer to the Syngistix
Software Guide on the Syngistix Document
Pack CD for details
.
Table 6-16. Performance Problems: Troubleshooting Table