By Anonymous on Monday, June 14, 1999 - 10:10 am:
From time to time we find ourselves needing to prep from a "jelly" sample matrix. We can extract out part of the matrix, but find the initial "jelly" hard to quantify.
By Steve B on Tuesday, June 15, 1999 - 08:09 am:
Is this a carbohydrate, protein, or synthetic jelly?
By Anonymous on Tuesday, June 15, 1999 - 08:57 am:
We do not deal with biological samples, this is a synthetic "jelly"
By Dennis Saunders on Friday, July 2, 1999 - 05:41 pm:
I have handled petroleum jelly samples by dissolving is hot hexane or heptane. I then extract the hexane solution solution with methanol.
Synthetic polymers like SBRs and acrylics are often crosslinked. Attempting to dissolve them causes the cross-linked network to swell into a gel. Quantitative extractions of the soluble material can be accomplished only with long extraction times.
Posting is currently disabled in this topic. Contact your discussion moderator for more information.