At 3:37 PM 7/30/96, Michael Chapman wrote:
>>I am looking to buy, or otherwise acquire, a roller mill. This consists of
>an array of rollers on top of which jars with steel rods rotate and
>pulverize/homogenize sample materials to a fine consistency. I have been
>given some basic plans on how to build one, but don't really have the time
>and maybe ability to get one built fairly quickly.
>I am also open to other suggestions for dealing with a few hundred soil
>samples to be prepared for d13C analysis of soil organic matter. Are there
>any mills/grinders that might be good for this and maybe plant material?
>Our Wiley mills are ok for plants, but mortar and pestle is the unfortunate
>method we have used in the past for soil and after processing a few
>hundred, repetitive stress becomes a very real issue.
>We have used a Wig-L-Bug from Crescent Dental for small samples, but this
>was pretty useless, seemed to self destruct with each use.
>Thanks for your help.
>Sioux Falls, SD 57197
>Phone : 605-336-4735
>email: [log in to unmask]
I've had good luck with a ball mill made by Cianflone Scientific
Instruments Corp. It works well with both plant and soil material. In
fact, I've stopped using a Wiley mill for plant material, as the ball mill
does 3 samples at a time, grinds very fast, and is faster to clean. Their
address and phone numbers are:
Cianflone Scientific Instruments Corp.
228 RIDC Park West Drive
Pittsburgh, PA 15275-1002 USA
Richard L. Boyce
Department of Biological Sciences
University of Denver
Denver, CO 80208 USA
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