How quantify Surfactin?

[Gilberto]

Good morning people,

I am studying surfactin, this is a biosurfactant. I need to quantify this by HPLC.

I use some methods but it was not so good.

Anyone have idea?

Thanks a lot,

Gilberto.

[pelle-plutt]

Google is your friend!
Here's one hit: Surfactin HPLC assay