Zetasizer Ultra

World’s most advanced light scattering system

Overview

The new Zetasizer Ultra is our most advanced system for the measurement of particle and molecular size, particle charge and particle concentration, and represents the most intelligent and flexible instrument in the Zetasizer Advance range.

Our flagship model enjoys all the benefits afforded by ZS Xplorer software, in terms of ease of use, analysis speed and data confidence, and also offers two unique measurement capabilities: Multi-Angle Dynamic Light Scattering (MADLS) and particle concentration*, to offer even greater insight into your samples.

*Zetasizer Ultra Red Label only

Specification

Particle size and molecular size

Measurement principle
Non-Invasive Back Scatter (NIBS) Dynamic Light Scattering
Dynamic Light Scattering (90° and 13°)
Multi-Angle Dynamic Light Scattering (MADLS)
Measurement angle 173°, 13°, 90°
Measurement range 0.3 nm - 15 μm 2
Minimum sample volume 3 μL
Concentration range
Minimum sample concentration:  
Blue Label: 0.2 mg/mL 15 kDa Protein
Red Label: 0.1 mg/mL 15 kDa Protein
 
MADLS: 
0.1 mg/ml 15 kDa Protein
 
MADLS Particle Concentration Enabled?
Blue Label: No
Red Label: Yes
 
Maximum sample concentration(3):
40% w/v 

Zeta potential

Measurement principle Mixed-Mode Measurement phase analysis light scattering (M3-PALS)
Size range 3.8 nm – 100 μm
Minimum sample volume 20 μL 4
Concentration range
Red Label: 1 mg/mL 5 to 40% w/v 6
Blue Label: 10 mg/mL to 40% w/v 6
Sample conductivity range Maximum: 260 mS/cm

Static Light Scattering (molecular weight)

Molecular weight range 300 Da – 20 mDa
Measurement principle Static Light Scattering with Debye Plot
Accuracy +/- 10%

Particle concentration

Measurement principle
Blue Label: N/A
Red Label: MADLS - Particle Concentration (Mie)
Concentration range
Blue Label: N/A
Red Label: 1x108 to 1x1012 particles/mL
Calibration type
Blue Label: N/A
Red Label: Single point system calibration only

System

Detector Avalanche Photodiode
Laser safety
He-Ne (633 nm)
Blue label: 4 mW Max 
Red label: 10 mW Max
Temperature control range 0 °C - 120 °C 7
Dimensions (W, D, H) 322 mm x 565 mm x 245 mm
Weight 19 kg
Power AC 100-240 V, 50-60 Hz, 4.0 A
Power consumption Max 100 W, Typical 45 W
Ambient conditions +10°C to +35°C, 35 to 80% RH (Non-condensing)
Interface USB 2.0 or higher

Notes

Notes
1 - Water as dispersant
2 - Indicative data available for particle sizes greater than 10 μm when using Extended Size Range analysis and low volume disposable sizing cell accessory. 
3 - Sample dependent
4 - Using patented diffusion barrier technique
5 - Measured using 15 kDa protein
6 - Measured using bile acid
7 - Dry nitrogen cell purge required for temperatures below dewpoint 
8 - Accuracy 0.1°C at 25°C, 0.2°C at 0°C, 0.5°C at 90°C
9 - Recommended upper size range for MADLS is 500nm diameter

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