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Erik Skibsted (Unregistered Guest)
Unregistered guest
Posted on Thursday, April 27, 2006 - 4:31 am:   

Hi Heather

I am looking for the same information and found some answers here:

Robert et al, 1999, Appl. Spec. vol 53, no 2
Bai et al, 2005, Jour.of Phar.Sci., vol 94, no 9
Izutsu et al., 2006, Jour. Pharm. Scien. vol 95, no 4

BR
Erik Skibsted
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Tony Davies (Td)
Posted on Monday, November 14, 2005 - 11:09 am:   

Hello Heather,

If you click "Keyword Search" in the utilities menu on the left of the screen (In the discussion group), another screen will open. If you enter "alpha helix" as a search term then the third answer will lead you to the answer I gave to another Heather in July.

Best wishes,

Tony

PS TO ALL USERS:
It is well worth doing a search whenever you have a new question. There are hundreds of answers in the database.
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Heather
Posted on Saturday, November 12, 2005 - 1:42 pm:   

Hi,

I had a question from a collegue which I will post here.

He is interrested in measuring alpha-helix and beta-sheet band assignments for insulin. He wants to identifiy the alpha-helix and beta-sheet in an insulin sample in water then he wants to study the fibrilation under different conditions, such as pH, ionic strength....

He run a insulin sample and get several band from 2nd derivative NIR spectra, such as 4868, 4672, 4613, 4576, 4401, 4364, 4320, 4264 cm-1. Based on the reference on NIR he had, it seems very difficult to identify/assign a band to which structure it is.

Is anyone on this group can help? Thanks in advance.

Heather Vogt

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