By graham on Friday, February 25, 2000 - 01:10 am:
I am looking for an LC/UV detection method to analyse less than 10ppm levels of methacrylic acid in water/saline solutions. Your help would be appreciated.
By Gareth Lilly on Friday, June 1, 2001 - 03:46 am:
An old method, but will detect down to 1-2ppm with the right sample/std prep (I'm sorry I can't remember them off the top of my head!)
Column: Waters Spherisorb ODS2 5µm x 15cm 4.6mm
Mobile Phase: 5% Acetonitrile : 95% Water
Detection: UV @ 220nm
Flow rate & injection volume vary as needed. If this is required for low levels of leachables in saline buffer you might need to use a 25cm ODS2 instead - 'cos of interference from the buffer
~Gareth
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