Model | Zetasizer Nano ZS(Malvern Instruments Ltd) |
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Operating time | 09:00 ~ 18:00 |
Location | POSTECH Research Bldg. #108 |
inquiry |
Dr. Baek, Kangkyun 054-279-9948 k2baek@ibs.re.kr |
Explanation
The systems measure size and microrheology using dynamic light scattering, zeta potential and electrophoretic mobility using electrophoretic light scattering, and molecular weight using static light scattering. In addition the system can be used in a flow configuration to connect to a GPC / SEC system for use as a chromatography size detector.
Specification
● Particle size and molecular size
- Measurement range: 0.3nm – 10.0 microns (diameter)
- Measurement principle: Dynamic Light Scattering
- Minimum sample volume: 12μL
- Accuracy: Better than +/-2% on NIST traceable latex standards
- Precision/Repeatability: Better than +/-2% on NIST traceable latex standards
- Sensitivity: 0.1mg/mL (Lysozyme)
● Zeta potential (and optional Protein Mobility)
- Measurement range: 3.8nm – 100 microns (diameter)
- Measurement principle: Electrophoretic Light Scattering
- Minimum sample volume: 150μL (20μL using diffusion barrier method)
- Accuracy: 0.12μm.cm/V.s for aqueous systems using NIST SRM1980 standard reference material
- Sensitivity: 10mg/mL (BSA).
● Molecular weight
- Measurement range: 980Da – 20M Da
- Measurement principle: Static Light Scattering using Debye plot
- Minimum sample volume: 12μL (3-5 sample concentrations required)
- Accuracy: +/- 10% typical