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          Isotope Detection of Grinding Wood by Grinding Instrument

          Teachers of Environmental College of Shaanxi Normal University need to do wood experiments. The requirement is to grind the xylem into powder and then measure the heavy metals and rings in wood by stable isotope method.

          Generally speaking, the wood structure of Chinese fir (fir, spruce, cypress) is brittle. It is easy to grind steel tanks with a variety of tissue grinders. However, the teacher should remove the pollution effect of heavy metals on the samples and use plastic tanks to carry out experiments. As for the isotope detection experiment of grinding wood by grinding instrument, the wood structure of Chinese fir (fir, spruce, cypress) is brittle, and it is very easy to grind with steel beads and steel tanks. In order to remove the pollution effect of heavy metals on the samples, ceramic beads and plastic tanks are used for the experiment.

          In the same way, samples and ceramic beads are added to the plastic tank, placed in the instrument, set the frequency and time, and then grind.

          The grinding fineness of the powdered sample after grinding can meet the experimental requirements.



          Note: Samples must be lyophilized in the freeze dryer for more than XX hours, otherwise the fibers in the wood are not easy to grind and crush, and the grease in the xylem is easy to adhere to the wall of the grinding tank and the grinding beads, and it is not easy to clean up and recycle the samples.

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