We homogenize samples by taking a little amount of liquid nitrogen and
putting that on the sample in a little marmer ( a sort of stone, I don't
know if that is the same in english)  beaker and then we homogenize it with
a massive (also from the same material than the beaker) stamper. I hope that
will help you for homogenize your samples because we are doning that on
little animals and not on plants.
Ann
-----Oorspronkelijk bericht-----
Van: Jeff Heikoop <[log in to unmask]>
Aan: [log in to unmask] <[log in to unmask]>
Datum: dinsdag 10 augustus 1999 17:32
Onderwerp: homogenizing plant samples


>Hi All:
>
>        I'm trying to homogenize 30 cm long cattail samples (the leaf
portion, not
>the main stalk)) into a fine powder for d15N and d13C analysis.  I had some
>luck with a ball mill but the rubber/cork gaskets are breaking down and
>contaminating the sample.  The material is quite fibrous which makes
>homogenization difficult.
>
>        Any advice would be appreciate.  Please e-mail me direct.  Thanks
in advance.
>
>Jeff
>
>
>******************************
>Jeff Heikoop
>EES-1, MS-D462
>LANL
>Los Alamos, NM 87545
>-----------------------------------
>Phone:  (505) 667-8128
>Fax:            (505) 665-3285
>