ScholarWorks@UA

Sample Preparation — the First Step of Successful Research

DSpace/Manakin Repository

Show simple item record

dc.contributor.author Miao, Yan
dc.date.accessioned 2013-07-25T17:23:29Z
dc.date.available 2013-07-25T17:23:29Z
dc.date.issued 2013
dc.identifier.uri http://hdl.handle.net/11122/1982
dc.description.abstract The overall goal of our research project is to study the unfrozen water mass and mobility in frozen soils. Frozen samples of standard clays with different adsorbed cations will be analyzed to determine their surface potential, micro-fabric, and how they interact with unfrozen water. To be successful, our first step was to develop standard procedures for sample preparation. During the past six months, we have developed and tested a set of methods for preparing clay samples, which included crushing source rocks into clay- sized samples with a suitable grain size distribution and exchanging cations for each type of clay. We experimented with different crushing methods, including using a ball mill, and mortar and pestle. Repeatable hydrometer test results indicated that our final combination of methods will produce clay samples with grain size distributions that are acceptable for future testing. Next, we exchanged the adsorbed cations with Ca2+, Mg2+, K+, and Na+ using chloride salt solutions, and flushed the excess chloride from the soil. Each cation-saturated clay required a different number of flushes due to the changes in surface chemistry. Sample preparation may seem simple, but all great research begins with a sound scientific foundation. en_US
dc.language en_US
dc.language.iso en_US en_US
dc.subject undergraduate, research, ursa, poster, en_US
dc.title Sample Preparation — the First Step of Successful Research en_US
dc.type Poster en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ScholarWorks@UA


Advanced Search

Browse

My Account

Statistics