Photon Correlation DLS Nano particle Size Analyzer

Brief Introduction:

Overview

DLS-802 dynamic light scattering nanometer particle size analyzer works based on the dynamic light scattering (DLS) principle. We are the first domestic manufacturer adopting a digital correlator for this type of instrument. This model is upgraded from DLS-801, China’s first home-developed nano particle size analyzer.

The instrument relies on the Brownian motion theory: smaller particles move faster, while larger particles diffuse more slowly. Equipped with high-performance HAMAMATSU photomultiplier tube from Japan and our self-developed high-speed digital correlator as core components, it detects fluctuations of scattered light at fixed angles to obtain the diffusion coefficient of particles. Then the particle size and particle size distribution are calculated via the Stokes-Einstein equation.

DLS-802 delivers fast computation speed, high resolution, excellent accuracy and repeatability. It is widely deployed in enterprise product laboratories, R&D centers and university research laboratories for nano particle characterization.

Main Features

1. Based on dynamic light scattering and Brownian motion principle for nano particle size measurement
2. Pioneer domestic instrument with self-developed high-speed digital correlator
3. Upgraded version of DLS-801, China’s first nano particle size analyzer
4. Core detector: high-quality Japan HAMAMATSU photomultiplier tube
5. Fast calculation, high resolution, reliable accuracy and repeatability
6. Ideal for R&D laboratories of enterprises and academic university labs

Applications

Nanomaterial research, nanoparticle size and distribution detection, polymer colloid, emulsion, liposome, protein and biomacromolecule particle characterization in corporate R&D and university laboratories.

Main specification:

Application:

Nano metallic oxide, Nano metallic powder, Nano ceramic material, protein, polymer latex, preparation of pharmaceutical, water/oil emulsion, paint, coating material, pigment, ink, toner, cosmetics and other fields of research, preparation, and application of nano materials.

Main Features:

• Advanced test principle:

Dynamic light scattering principle and photon correlation spectrum technology, according to Brownian motion speed of particle to test particle size, different size of particles have different speed, when laser illuminate these particles, it will make scattering light happen different speed of fluctuations- downs. Photo correlation spectrum method will analyze these particle size according to Photon fluctuations -downs in particular direction.

• High resolution:

Using PCR technology test nanometer-scale particle size, must be able to distinguish nanosecond signal fluctuations. The core components of the instrument are CR256 digital correlator developed by our company, with 8ns high resolution speed.

• High sensitivity and Noise-signal ratio

Detector is composed of imported HAMAMATSU photomultiplier, ensure good accuracy.

• High speed data collection and calculation

Self-developed patent product-CR256 digital correlation, it can finish dynamic scattering light intensity collection and autocorrelative function by real time calculation. Data processing speed is up to 162M, effectively reflect dynamic scattering light information of different sizes of particles.

• High stable optical path system

Photon correlation spectrum detect system adopt optical-fiber technology, with smaller size and high anti-interference and reliability.

• High precision constant temperature control system

Semiconductor temperature control technology, precision control within ±0.1℃，make samples be in a constant state throughout the testing process, prevent testing error because temperature change will change liquid viscosity and Brownian movement speed.

Output parameters:

Real particle size distribution, freely set D10-D100, D [4,3], D [3,2], D [2,1], D [1,0] and specific surface area.