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EvilTwin

Member Since 12 Oct 2011
Offline Last Active Mar 20 2013 09:08 AM
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Topics I've Started

Hyaluronate electophoresis

21 February 2013 - 01:04 AM

Hi everyone!
I would like to ask if anyone has any experience in electrophoresis and detection of hyaluronate. I did PAGE of a digest mixture (consisting of HA chains of various lengths) according to numerous protocols (15% and 10% gel in TBE, linear gradient 20%-3% and 18%-1,5%, with samples in NaOAc, NH4HCO3, NaOAc+HCl, dH20
or TBE, with the voltage of 300V and 100V and detection by Alcian Blue in water, water+2% acetic acid or water+40%methanol+10% acetic acid.  


Everytime I just got an ugly smudge instead of nice "ladder". Today I will try Alcian Blue+Silver staining protocol, but I doubt whether it can do any good. I think a smudge is a smudge, no matter how you dye it, though I still hope I am wrong.  
Does anyone have any idea what else I could try?

Arginine on anione IEC

07 November 2012 - 04:20 AM

Hello everyone!
Has anyone tried to perform anion exchange chromatography in the presence of arginine in basic buffer or encountered any papers on the subject?
I have found a few papers on the influence of arginine on katione exchange chromatography, but absolutely nothing on anion exchange. I  would be very grateful for any clues.

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