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Member since: 2014
Organization: Institute of Chemical Technology, Prague
Application Area: Or lab used it for separation of colostrum whey
"We received this column just over a month ago. For the first 100 injections everything was very good. Separation was wonderful. Analysis of a sample took 15 minutes. I thought that I received the best column which you can buy. I used a cleaning solution of 0.1 M Monosodium phosphate pH 3.0 and 20% methanol. A week later I used the column again but separation was awful. I tried to clean it with 0.5 SDS and acetonitrile gradient, but result was the same. Then I connected a 2 year old BioSep-SEC and result was good. So problem was in Yarra column. Phenomenex provide 45 days of return or exchange for their columns. I contact domestic distributor and explain situation. But until now, nothing has changed. Annoyingly that column for more than 1,000 Euro died so quickly. "