By niusha on Saturday, April 10, 2004 - 01:02 am:

im looking for a proper internal standard for measuring thiamine in plasma by hplc

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By niusha on Saturday, April 10, 2004 - 01:05 am:

please help me

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By A.Mouse on Saturday, April 10, 2004 - 04:59 pm:

I would try, but I need to know a lot more about the methods that you are using. How do you do the sample preparation? How do you do the HPLC?

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By Anonymous on Sunday, April 25, 2004 - 02:23 pm:

Im looking for an internal std for this too. Samples are red cell haemolysates after saline washing

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By Anonymous on Thursday, June 3, 2004 - 04:55 pm:

The best would be using 15N and 13C-labeled thiamine with MS detection
The second best would be a methylated version of the vitamin