Equipment

Zeta Sizer | 제타전위 나노입도분석기

보유장비 관련 정보
Laboratory/Field
Model Nano ZS
Maker Malvern
Technician Choi Hyunji
Contact 052-217-4038 / hjichoi@unist.ac.kr
Status for Reservation 가능
Reservation Unit 0.5hr Maximum Time (per day) 2hr
Open(~ago) 5일전 Cancel (~ago) 2시간전
  • Description

    Particles, emulsions and molecules in suspension undergo Brownian motion. If the particles or molecules are illuminated with a laser, the intensity of the scattered light fluctuates at a rate that is dependent upon the size of the particles as smaller particles are kicked further by the solvent molecules and move more rapidly. Analysis of these intensity fluctuations yields the velocity of the Brownian motion and hence the particle size using the Stokes-Einstein relationship. Dynamic light scattering is a non-invasive and well-establish technique for measuring the size of molecules and particles typically in the submicron region.

  • Specifications

    • Power : single 220 V, 60 Hz

    • Particle measurement

    - volume range of 12 ㎕ ~ 1.0 mL

    - sample concentration > 40 % by weight

    - min. concentration 0.1 mg/mL

    • Zeta potential measurement

    - Principle : laser doppler velocimetry

    - Range : - 150 mV ~ + 150 mV

  • Applications

    • Size measurement

    • Zeta-potentail measurement