Indian Council of Agricultural Research
(Agricultural Knowledge Management Information System)

ICAR-Central Arid Zone Research Institute (CAZRI), Jodhpur 342003, Rajasthan (
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Instrument Details
Instrument/Facility Name: Particle Size Analyzer
Make                                   : Beckman Coulter
Model                                  : Delsaâ„¢Nano C
Specification   :

Click to ViewSciQuest Category: Particle Size Measuring Apparatus; Sample Modules: Size Cell (0.03 mL, 0.9 mL), Flow Cell (0.7 mL), High Concentration Cell (1 mL); Technology: Photon correlation spectroscopy, Electrophoretic light scattering; Correlator: Two, Time domain and Time of arrival; Environmental Operating Temperature: 10°C - 40°C; Light Source: Dual 30 mW laser diodes, 658 nm; Molecular Weight Range: 10E3 - 3 × 10E7 Daltons; Measurement Temperature Range: 15°C below ambient to 90°C; Concentration Range: 10 ppm - 40%; Size Range: Size: 0.6 nm - 7 µm: Scattering Angle: 15°, 30°, 165°.

  Working Principles
Click to ViewLaser diffraction measures particle size distributions by measuring the angular variation in intensity of light scattered as a laser beam passes through a dispersed particulate sample. Large particles scatter light at small angles relative to the laser beam and small particles scatter light at large angles, as illustrated below. The angular scattering intensity data is then analyzed to calculate the size of the particles responsible for creating the scattering pattern, using the Mie theory of light scattering. The particle size is reported as a volume equivalent sphere diameter. The DelsaNano C uses photon correlation spectroscopy (PCS), which determines particle size by measuring the rate of fluctuations in laser light intensity scattered by particles as they diffuse through a fluid, for size analysis measurements and electrophoretic light scattering (ELS), which determines electrophoretic movement of charged particles under an applied electric field from the Doppler shift of scattered light, for zeta potential determination. This instrument has a broad range of capabilities, including conventional static and automatic titration measurements for both size and zeta potential distributions of suspended particles in a wide range of size and concentration. The DelsaNano C also can measure zeta potential of a flat surface or film.

  User Instructions
Particle size analysis involves using methods such as laser diffraction to measure the size of particles within a sample. By measuring and controlling particle size, manufacturers are able to deliver higher quality products. The use of these are enormous in various formulation i.e. emulsions, proteins, chemical mechanical polishing, contaminations, inks & paints, nanoparticles, filter testing and lipozymes etc.The user should prepare the aliquot in solution phase with the concentration range 10 ppm – 40%. Sample is to homogenized prior to analysis

  Contact Us
Contact No. 0291-2788789
Email Id

  Particle Size Analyzer Charges
Procedure Name
National LAB/R&D
Standard Protocol of the nutrient/compound

Additional Rs 100/-towards postal charges if result are to be posted
The Demand Draft should be in favour of "Director, CAZRI, Jodhpur"
Letter, DD & Samples send to "Head Division of IFS ICAR – Central Arid Zone Research Institute Jodhpur - 342 003"