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vinyl and silicone OV1
Posted: Fri Feb 23, 2007 5:51 pm
by abhush
Hi,
I found two kinds of OV-1 in my lab, one silicone based and the other vinyl based. Could anyone help me figure out the difference between the two? I will appreciate it.
thanks.
Posted: Fri Feb 23, 2007 6:14 pm
by chromatographer1
OV-1 phase is a high molecular weight 100% methyl silicone gum.
Can you describe the labels of the OV-1 samples you have as you have found them more fully?
Some methyl silicones have a 1% or 2% vinyl composition as well.
The difference, for example, between SE-54 and SE-52 is 1% vinyl 99% Methyl silicone versus 100% methyl silicone.
best wishes,
Rod
Posted: Fri Feb 23, 2007 7:21 pm
by abhush
One says, OV-1 Vinyl
the other, Silicone OV-1 LV modified
I am not sure what the vinyl and silicone refer to.
Posted: Fri Feb 23, 2007 7:32 pm
by chromatographer1
OV-1 (1% vinyl) is the USP phase [G9], another brand name is UCW-982.
Vinyl pertains to the polymer containing 1% vinyl.
The other silicone refers to it be a methyl silicone polymer but as to the LV modified? I have no idea.
Is there no company name or product number or phone number on the bottle?
best wishes,
Rod
Posted: Fri Feb 23, 2007 8:57 pm
by abhush
Both are from Ohio Valley. I will call them to confirm. Thanks for your help, Rod.