Ghost peaks in isocratic analysis - WKB239432

SYMPTOMS

• Ghost peaks in isocratic analysis
• When using the same mobile phases and the same column with the same 2695 UV systems, ghost peaks appear on the corresponding instrument, while the analysis runs normally on the other system
• The ghost peaks also appear in immediate injection with the corresponding instrument

ENVIRONMENT

• 2695 Separations Module

CAUSE

Fluidics

FIX or WORKAROUND

Replace pump consumables and head and the in-line filter assemblies.

ADDITIONAL INFORMATION