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| Titel |
Particle size distributions by laser diffraction: sensitivity of granular matter strength to analytical operating procedures |
| VerfasserIn |
F. Storti, F. Balsamo |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1869-9510
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| Digitales Dokument |
URL |
| Erschienen |
In: Solid Earth ; 1, no. 1 ; Nr. 1, no. 1 (2010-04-19), S.25-48 |
| Datensatznummer |
250000116
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| Publikation (Nr.) |
 copernicus.org/se-1-25-2010.pdf |
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| Zusammenfassung |
| We tested laser diffraction particle size analysis in poorly coherent
carbonate platform cataclastic breccias and unfaulted quartz-rich eolian
sands, representing low- and high-strength granular materials, respectively.
We used two different instruments with different sample dispersion and
pumping systems and several wet analytical procedures that included
different pump speeds, measurement precision tests with and without sample
ultrasonication, and different dispersant liquids. Results of our work
indicate that high strength material is not strongly affected by analytical
operating procedures, whereas low strength materials are very sensitive to
the pump speed, ultrasonication intensity, and measurement run time. To
reduce such a data variability, we propose a workflow of analytical tests
preliminary to the set up of the most appropriate SOP. |
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