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Study of Characterization of Magnetite–Silica Magnetic Fluids by Laser Scattering (CAT#: STEM-ST-0160-YJL)

Introduction

Magnetic fluids have been the subject of scientific research for a long time and are used in various fields of engineering, including mechanical engineering, mining, and electronics, as well as in medical diagnostics and sensing devices. The main qualities that a magnetic fluid must possess are aggregate and sedimentation stability, saturation magnetization, and biocompatibility (when used in medicine). An important difference between technical requirements to magnetic fluids used in these areas is the concentration of magnetic particles in their compositions.

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Principle Applications Procedure Materials

Principle

Laser scattering method is a commonly used material detection method, which uses a laser beam to irradiate the sample, and analyzes the physical and chemical properties of the sample by detecting the intensity and direction of the scattered light from the sample. This method has the advantages of non-contact, high sensitivity, and high resolution, and is widely used in materials science, biomedicine, and environmental monitoring.
The detection principle of the laser scattering method is based on the scattering phenomenon of light. When the laser beam hits the surface of the sample, part of the light will be scattered in all directions, forming scattered light. The intensity and direction of these scattered light are related to the physical and chemical properties of the sample, so the properties of the sample can be analyzed by detecting the characteristics of the scattered light.

Applications

Laser light scattering (LLS) is used to determine size of various particles including proteins, polymers, micelles and nanoparticles.

Procedure

1. Sample preparation
2. Measurement by scattering detection instrument
3. Data analysis

Materials

Laser Light Scattering Instrument

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