By Anonymous on Friday, May 7, 2004 - 05:36 am:

Does anyone have a column suggestion for a Vitamin D assay? I have Amino, Cyano c8 and c18.

Thanks in advance.

Mike

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By heinz sarter on Friday, May 7, 2004 - 06:05 am:

hello mike,
you can use a cyano column in combination with a reversed phase column (see BP 93).
You can separate Vitamin D2 and D3 on a Hypercarb column.
Best regards
Heinz

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By Sunil on Thursday, June 3, 2004 - 01:53 am:

u can use Inertsil ODS 3V 150 X 4.6 5u or any other c18 column with ACN:CH3OH (890:110) 1.5 ml flow