1. Open the cartridge, thoroughly mix the solid adsorbent, and re-pack the materials into the cartridge.

  2. Count the sample again at the same position, and compare the count rate with the previously obtained average count rate. A necessary correction factor can be calculated.

D.7 REFERENCES

1. R.G.Helmer, Int. J. Appl. Rad. Isot, 34, 1105 (1983).

2. C.C.Lin, Int. J. Appl. Rad. Iso., 32, 657 (1981).



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