Dynamic light scattering (DLS) is used to measure very small particles, typically on the order of 0.6nm - 6um, by studying how they move in solution. Semiconductor temperature control technology, precision control within ☐.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.Ĩ) Output parameters: Real particle size distribution, freely set D10-D100, D,D, D,D and specific surface area.There are many ways to characterize and measure DNA nanostructures, and today I wanted to write about one tool in particular, dynamic light scattering (or photon correlation spectroscopy). Photon correlation spectrum detect system adopt optical-fibre technology, smaller size and high anti-interference and reliability.ħ)High precision constant temperature control system Self-developed patent product-CR256 digital correlation, It could finish dynamic scattering light intensity collection and autocorrelative function real time calculation, Data processing speed is up to 162M, effectively reflect dynamic scattering light information of different sizes of particles. The core components of the instrument is CR256 digital correlator developed by our company, with 8ns high resolution speed.Ĥ) High sensitivity and Noise-signal ratioĭetector is composed of imported HAMAMATSU photomultiplier, so ensure good accuracy.ĥ) High speed data collection and calculation

Using PCR technology test nanometer-scale particle size, must be able to distinguish nanosecond signal fluctuations. Photo correlation spectrum method will analyze these particle size according to Photon fluctuations -downs in particular direction. For some samples with absorbance properties ,which can not be detected by traditional single-wavelength laser, it can be tested effectively.ĭynamic 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. The correlation spectrum detection system is not only small size, but also has strong anti-interference ability, thus ensuring the stability of the test. Win XP/Win 7/Win 10 64 bits, USB port: 2.0 /3.0Īverage particle diameter, particle distribution,photon counting rate etc.ġ) Dual-wavelength laser, automatic switchingĮxclusively using dual-wavelength (λ= 450 nm, λ= 532 nm) laser to build the optical system. PMT -Imported Japan HAMAMATSU photo-multiplier (19-90℃)ĥ-90 ℃（temperature controller 5-90℃, precision within 0.1℃） Semiconductor laser λ= 532nm P=30 mW Auxiliary laser λ= 450nm P=5.0 mW

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. the machine is with characters of fast calculation, high resolution ration, good accuracy and repeatability, it’s widely used in company product lab research and university use, especialy good for testing particle size distribution of coloured particles. It adopt great performance of Japan HAMAMATSU photomultiplier and self-developed high speed digital correlator as core parts, Get diffusion coefficient by test scattering light change in some angle, and calculate particle diameter and distribution according to stokes-Einstein equation. Winner803 dynamic light scattering nanometer particle size analyzer which based on the dynamic light scattering principle, Based on Brownian motion principle, smaller particle, faster speed, bigger particle, more slowly.

Dynamic light scatter machine