Behavior Of Soil Particles Research Articles

A New Electrochemical Detection Technique for Organic Matter Content in Ecological Soils.

The rapid detection of organic matter in soil is of great interest in agriculture, but the commonly used techniques require laboratory operation. Therefore, the development of a technique that allows rapid detection of soil organic matter in the field is of great interest. In this work, we propose an electrochemical-based approach for the detection of organic matter in soil particles. Since soil particles immobilized directly on the electrode surface can fall off during testing, we introduced graphene to coat the soil particles. The encapsulated soil particles can be stably immobilized on the electrode surface. We have investigated the electrochemical behavior of soil particles. The results show a correspondence between the electrochemical oxidation and reduction of soil particles and the organic matter content in them. We collected soil samples from three sites and constructed an electrochemical modeling, testing framework with stability based on multiple calibrations and random division of the prediction set. We used the equal interval partial least squares (EC-PLS) method for potential optimization to establish the equivalent model set. A joint model for the electrochemical analysis of organic matter in three locations of soil samples was developed for the commonality study.

Visual Observations of the Behavior of Soil Particles in Dilute Aqueous Soap Systems

The nature of one type of detergent action was demonstrated visually upon the addi tion of graphite to soap solutions of laundry strength. The graphite became coated with elongated soap particles and superficially bore a resemblance to pieces of candy covered with shredded coconut. The soap particles, which may bear some relation to micelles, measured 100 to 150 A wide and from 500 to 1500 A long. This exploratory study in volved an electron microscopical examination of specimens from which the water had been removed while in the frozen state.