Why no peak; missing 4 ions in IC testing
Posted: Sun Aug 21, 2005 2:26 am
Hello
I'm using LC20 Dionex Ion Chromatography System.
Testing for an ion contamination in precision plastic parts.
When i calibrated using 25ul Mix 4 (F-20ppm,Cl 40ppm, NO2 40ppm, Br 40ppm, NO3 40 ppm, PO4 40ppm & SO4 40 ppm) standard solution in 100 ml DI water in 100ml flask, some of the ions didn't show any peaks in result.
I ran with the DI water first for 2-3 times before inject my calibration sample.
When I observe some peaks are missing, I prepared the std again and try agin but still the same.
How can I solve this problem?
Thanks in advanced,
Tom.
I'm using LC20 Dionex Ion Chromatography System.
Testing for an ion contamination in precision plastic parts.
When i calibrated using 25ul Mix 4 (F-20ppm,Cl 40ppm, NO2 40ppm, Br 40ppm, NO3 40 ppm, PO4 40ppm & SO4 40 ppm) standard solution in 100 ml DI water in 100ml flask, some of the ions didn't show any peaks in result.
I ran with the DI water first for 2-3 times before inject my calibration sample.
When I observe some peaks are missing, I prepared the std again and try agin but still the same.
How can I solve this problem?
Thanks in advanced,
Tom.