Generic Performance Tests for the Fertilizer Sample Preparation Laboratory
| Autor: | Julio Puentes, Robert L. Beine, David H. Tompkins, Kirk R Ranta |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Pharmacology
business.industry Chemistry Sample (material) Mixing (process engineering) Mineralogy engineering.material Analytical Chemistry Grinding engineering Environmental Chemistry Sample preparation Analytical procedures Fertilizer Particle size Process engineering business Agronomy and Crop Science Food Science |
| Zdroj: | Journal of AOAC INTERNATIONAL. 78:294-300 |
| ISSN: | 1944-7922 1060-3271 |
| DOI: | 10.1093/jaoac/78.2.294 |
| Popis: | Good sample preparation is an essential first step to almost all laboratory analytical procedures. The procedures presented are intended to stimulate interest in generic methods for performance testing of various steps in fertilizer sample preparation, including initial reduction of unground sample, grinding, and mixing. Sample reduction quality is measured by 2 types of procedures, the first using 2 sizes of glass beads for a more theoretical approach, and the second using 2 common fertilizer materials for a more empirical method. Grinding performance is measured by recovery and carryover methods, followed by particle size and uniformity estimates of the ground material. Mixing after grinding is tested by measuring time-to-blend of a segregated mixture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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