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2010-11-23 (Tue) 04:40:05 Shodex Technical question

Record: 84
Category: Specifications Product: IC Sample:
Question Are your anion columns all polymeric or are there some silica based columns you offer? Also what kind of reversed phase character does the methylacrylic columns exhibit.     Answer Shodex IC columns for the analysis of anions are made from polymer based gel materials. We do not deal in silica based columns for anion analysis. We understood you mentioned about the difference between silica based reversed phase columns and polymethacryrate based reversed phase columns. Please refer to the attached file. (See attached file: 101124 GOLF-413.pdf) Especially for the analysis of metal complex, the base materials of ODS columns sometimes interfere the separation performance by residual silanol groups as the attached file. On the other hand, because of polymer base does not have such site for metal complex, the peak shape becomes better with that.     Additional Comments
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