ICS-1000 Ion Chromatography System Operator's Manual

ICS-1000 Ion Chromatography System• Clogged column bed supportsRefer to the instructions in the column manual for troubleshooting guidance.Column manuals are included on the Dionex Reference Library CD-ROM(P/N 053891), located in the ICS-1000 Ship Kit (P/N 057905).• Contaminated columnsClean the columns as instructed in the column manual.• Plugged injection valve passagesRebuild the injection valve (see Section 5.4).4.8 Peak “Ghosting”“Ghosting” is the appearance of extraneous peaks in a chromatogram. These maybe late-eluting peaks from a previous injection, or they may be the result of acontaminated standard or eluent, or a malfunctioning injection valve. These peaksmay co-elute with peaks of interest, resulting in nonreproducible peakheights/areas.• Insufficient time between sample injectionsWait until the previous sample has been completely eluted before makinganother injection.• Insufficient flush between samplesFlush the sample loop with at least 10 loop volumes of deionized water orsample between sample injections.• Incorrect or contaminated standardsRemake standards.• Incorrect or contaminated eluentRemake the eluent according to the instructions in the column manual.Column manuals are included on the Dionex Reference Library CD-ROM(P/N 053891).Install or replace the end-line filter on the end of the deionized water line (seeSection 3.4.3).4-16 Doc. 031879-01 3/03