I need the methodology for analyse the Biotin through HPLC by using the following columns,
1. VP ODS 250 x 4.6mm
2. Phenomenex C18 Luna 5 micron 250x 4.6mm
try this way. with a C8 Column. I send you the reference USP 35 FN 28, pag 1631-1632
Sorry FN 30, 1631-1633 here you can find a methodology with a c18 column
Here you have in pdf version for C18 Column
Biotina for C8 Column
Kindly look at the following papers.
https://www.ncbi.nlm.nih.gov/pubmed/17225595
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