SIBS provides grinding service for almost any sample materials, using Retesch Oscillating Mixer Mill MM400 (for leaf, root, stem, , soil, fecal, blood, liver, and fish samples), Freezer Mill 6770 (for feather and hair), mortar and pestle (for salty soil), and scissors (for a small amount of samples such as insect and hair).

Homogeneity is very important for a better precision and accuracy of stable isotope analysis.

  • We need at least 3g of samples. If you have samples less than 1g, contact us.
  • Non-ground bulk samples can be sent in any containers. We provide glass vials.
  • Sample IDs must be clearly written on the containers.

See photos below for good and bad examples


BAD: Coarse leaf sample with some fiber


GOOD: homogeneous leaf sample (all particles are the same size. No fiber)


BAD: Coarse feather sample (see difference particle sizes of white and brown materials)


GOOD: The same feather sample with above, but ground much better (smaller particle for both white and brown materials)

Contact Us

Dept. of Ecosystem Science and Management
Rm 215 Kleberg Center
2126 TAMU, Texas A&M University
College Station TX 77843-2126

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