By jadzia on Wednesday, May 12, 2004 - 04:04 am:

I'm working on pesticide using a ECD and NPD detectors. I have some problems with standards as some of them degrade themsels by time and peaks diminish(even in few days!!!).I'm using acetone as solvent. is it a problem of sovent?has anyone suggestins?

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By Anonymous on Friday, June 11, 2004 - 03:20 am:

What are the pesticides are you analyse?