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Sampling strategy and its effect on the precision of results of ore analysis

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  • Chemometry/Theoretical Chemistry
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Summary

The paper deals with the last step of a sampling procedure — sample taking from a laboratory sample. The description of various sampling techniques is presented. These methods were applied to two gold-bearing materials. The sampling of single clusters fails with segregated materials; incremental sampling (several increments are taken to results in the final sample) and using of a sample divider give good results for segregated materials as well. The stratified sampling enables to separate gold particles beforehand and yields the lowest sampling variance. A new method for predicting sampling variance using a computer simulation is presented. Predicted data are in good agreement with experimental ones.

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Authors and Affiliations

  1. Department of Analytical Chemistry, Prague Institute of Chemical Technology, Technická 5, CS-166 28, Prague 6, Czech Republic

    Oto Mestek & Miloslav Suchánek

Authors
  1. Oto Mestek
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  2. Miloslav Suchánek
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Mestek, O., Suchánek, M. Sampling strategy and its effect on the precision of results of ore analysis. Fresenius J Anal Chem 348, 188–194 (1994). https://doi.org/10.1007/BF00325358

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  • DOI: https://doi.org/10.1007/BF00325358

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