Waters Prep Series Installation And Maintenance Manual page 99

Peak resolution troubleshooting (Continued)
Continued from
previous page
column band
broadening?
filter constant
Call Waters
technical service
Column
Before using this troubleshooting tree, use those that appear earlier in the
chapter to isolate the column as problem's cause.
Refer to the figure below to determine the possible cause of your column
problem.
Extra
No
Detector
Yes
too high?
No
Yes
Coeluting
peaks?
No
Adjust filter
constant
If retention time
correct, is sample
contaminated or
degraded?
No
Use fresh
Yes
sample and
standard
Troubleshooting 3-15