Size range: 1nm-9500nm ;Application: Nano metallic oxide, Nano metallic powder, Nano ceramic material, protein, polymer latex,

BT-90 dynamic light scattering nano laser particle size analyzer is a project which Bettersize introduces research results from South China Normal University and carries out with them together. The principle is when nano particles are scattered in medium, because of Brownian Motion of liquid molecular, nano particles are impacted and doing irregular movement, the smaller the particle is, the faster the movement is, so the range is bigger, the bigger the particle is, the slower the movement is, so the range is smaller, When nano particles are illuminated by laser beams, the pulsatile signals of scattered light will generate, the change rate of optical signal's intensity has some connection with particles’ motion state (speed and range), that is, has some connection with particle diameter, photomultiplier receives these pulsatile signals of scattered light, transform them into electric signals, and process by digital correlator, identify validated dynamic light scattering signals, and then use inversion processing of software, equation of Stokes-Einstein, calculate the nano particle diameter and its particle size distribution.

PerformanceSize range: 1nm∼9500nm. Repeatability:< 3% (Deviation of D50 on certified referencematerial). Warning:The power of laser diode of BT-9300ST is 3mw, normally, it cannot harm human body. However do not cut laser with reflector or the eyes are subject to damage. Test time:≤5 minutes per time. Concentration: 0.1mg/ml ∼ 100mg/ml (in connection with sample). Tank capacity:0.5ml, 5ml. Temperature range of tank: 15°C∼65°C. Laser source: 20 mW, 635 nm solid laser. Angle of scattering: 90°. Detecting unit: PMT(photomultiplier). Correlator:200 pcs physical channels,1-5us dynamic sampling and defer time. Computer Interface: USB 2.0 OperatingSystem:Win XP, Win7. Environmental conditions: 5°C ~ 35°C Computer:Computer operating WindowsTMXP Printer: stylus, ink or laser printer that can work with Windows Operating System Applications

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 material.

BT-90 features and advantagesHigh accuracy and repeatability: the error of accuracy and repeatability are much less than the allowable error through testing Standard Sample. The error of accuracy and repeatability are all less than 3%, other indexes are up to the International Standard ISO 13321. Fast testing: just spend less than 5 minutes testing sample and getting an accurate result. A precise temperature control system: temperature control precision of 0.2°C,to ensure accuracy of test results. High precision photomultiplier(PMT): imported photomultiplier(PMT), high sensitivity, high-speed, stable performance, precise recognition of each photon. High performance photon correlator: adopt photon correlator which developed by large scale integrated circuit (DSP), multichannel, high-speed, identify photon signal of different particle size effectively. Fast testing: just spend 1-3 minutes testing sample and getting an accurate result. A precise temperature control system: temperature control precision of 0.5°C, to ensure accuracy of test results. High precision photomultiplier(PMT): imported photomultiplier(PMT), high sensitivity, high-speed, stable performance, precise recognition of each photon. High performance photon correlator: adopt photon correlator which developed by large scale integrated circuit(DSP), multichannel, high-speed, identify photon signal of different particle size effectively. Functional software: user-friendly interface makes operation easily, animation display. The software also has multi-language function, 17 languages switch easily; convert test report into the format of Excel, Word, etc; also the software integrates a test report edit function, provides 12 formats of Chinese and English, for users to choose at any time. Schematic diagram

 

Verification of accuracyTest result of 100nm Standard sample is 101nm,error range is 1%,is much less than 10% which is requested by International Standard ISO13321.Test result of 150nm Standard sample is 146.18nm,error range is 2.5%,is much less than 10% which is requested by International Standard ISO13321.Test result of 300nm Standard sample is 300.37nm,error range is 0.12%,is much less than 10% which is requested by International Standard ISO13321.

BT-90 Nano Laser Particle Size Analyzer