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SPE procedure for Vitamin B6, B9, B12

Discussions about sample preparation: extraction, cleanup, derivatization, etc.

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SPE procedure for Vitamin B6, B9, B12

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mobunvar
Can any one give me an idea about SPE method for extraction of these three vitamins from human plasma ? I have followed previous published methods but they are not working.

Re: SPE procedure for Vitamin B6, B9, B12

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oscarBAL
I think Inmunoafinity columns for B9 and B12 is an option; I do not remember if there are a IA Column for B6.
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