• Name of the device: Dynamic Light Scattering (DLS)
• Device model: SZ-100
• Made by the company: Horiba, Japan
• Operator: Fatemeh Mokhtarian
• Scientific supervisor of Dr. Mohammad Hashem Hosseini (a member of the Faculty of Agriculture) Tel: 36138357)
• Time of use: all days of the week except holidays

• Description:
• Dynamic light scattering is a physical method used to determine the distribution of particles in solutions and suspensions. This non-destructive and fast method is used to determine the size of particles in the range of several nanometers to several micrometers - zeta potential is used as a measure of the surface charge of particles and molecular weight measurement.
• The important features of the DLS device of the central laboratory of Shiraz University are as follows:
• The ability to determine the size of particles in the range of 0.3 nm to 8 micrometers.
• Determination of zeta potential in the range of -200 to +200 mV.
•  Measurement of molecular weight in the range of  to  Daltons.
•  It has three PMT detectors at angles of +13 (for zeta potential and size determination), +90 (for low concentrations) and +173 (for high concentrations).
• Equipped with a solid state laser with a wavelength of 532 nm and a power of 10 milliwatts