Wiggle-bugs are good, but can be expensive. We found a decent used 
one that we are happy with at an on-line used dental equipment place 
(http://www.used-dental.com/).

Paul Eby
University of Victoria

At 07:59 AM 01/10/2008, you wrote:
>Isotope geochemists,
>
>I am about to analyze leaf samples for C and N on a 
>Isoprime/Eurovector EA.  I am curious what the consensus is about 
>the best Milling device. I see many out there ranging in price from 
>500 to 10000 dollars US.  What are the advantages and disadvantages 
>of the various milling/grinding devices you have experience with?  I 
>have tried a coffee grinder, but I cannot get a fine enough powder 
>and there are still chunks (around 1mm) of stem.
>
>Any advice will be helpful.
>
>
>Thanks in advance
>
>Aaron Shultis, Research Scientist
>Water Center
>School of Natural Resources
>University of Nebraska-Lincoln
>103 Water Sciences Lab
>Lincoln, NE 68583-0844 U.S.A.
>
>
>
>No virus found in this incoming message.
>Checked by AVG - http://www.avg.com
>Version: 8.0.173 / Virus Database: 270.7.5/1701 - Release Date: 
>9/30/2008 7:08 PM