Litter grinding

Many of the litter samples I brought to Holden Arboretum were not sufficiently ground for Elemental Analysis, so I used a coffee grinder to break up tough litter material (like cattail and Thalia), and then sub-sampled that material to grind in small red-capped vials with metal beads in them.  Here are a few photographs of the process.

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Large vials filled with partially ground litter

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Smaller vials with more finely ground litter

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Grinding beads
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Partially ground cattail litter in the coffee grinder
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After photograph of ground cattail litter
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A subsample is taken to place in the small red-capped vials
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The coffee grinder... sophisticated science equipment.
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A finished sample.

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