Uncertainty in sample mass for small numbers of particles from granular materials

Authors
Gao, Z Kratochvil, B
Citation
Z. Gao et B. Kratochvil, Uncertainty in sample mass for small numbers of particles from granular materials, ANALYST, 126(6), 2001, pp. 943-946
Citations number
11
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYST
ISSN journal
00032654 → ACNP
Volume
126
Issue
6
Year of publication
2001
Pages
943 - 946
Database
ISI
SICI code
0003-2654(2001)126:6<943:UISMFS>2.0.ZU;2-X
Abstract
The standard deviation of sample mass was quantitatively related to the num ber of particles in the sample, individual particle masses and the fraction s of the numbers of different types of particles in the mixture. The theory was verified by sampling of cereal grain mixtures with a spinning riffler and Monte Carlo computer simulation. The theory is applicable to random sam pling of well-mixed populations containing two or more types of particles.