Nano Particle Size Analyzer (355 x 381 x 330 mm)

Nano Particle Size Analyzer (355 x 381 x 330 mm) is a highly flexible Dynamic Light Scattering (DLS) analyzer which provides information on particle size, zeta potential, concentration, and molecular weight. It allows faster measurements with reliable technology, higher precision, and better accuracy. All of this combined into a compact DLS analyzer with a revolutionary fixed optical probe.

With the unique and flexible probe design and the use of the Laser Amplified Detection method in the Nano Particle Size Analyzer (355 x 381 x 330 mm) the user is able to choose from a wide array of measurement cells that satisfy the needs of any application. This design also allows measurements of samples over a wide concentration range, monomodal or multimodal samples, all without prior knowledge of the particle size distribution. This is made possible through the use of the Frequency Power Spectrum (FPS) method instead of classical Photon Correlation Spectroscopy (PCS).

FUNCTIONAL PRINCIPLE

The optical bench of the Nano Particle Size Analyzer (355 x 381 x 330 mm) is a probe containing an optical fiber coupled with a Y splitter. Laser light is focused on a volume of sample at the interface of the probe window and the dispersion. The high reflectivity sapphire window reflects a portion of the laser beam back to a photodiode detector. The laser light also penetrates the dispersion and the particle–s scattered light reflects at 180 degrees back to the same detector.

The scattered light from the sample has a low optical signal relative to the reflected laser beam. The reflected laser beam mixes with the scattered light from the sample, adding the high amplitude of the laser beam to the low amplitude of the raw scatter signal. This Laser Amplified Detection method provides up to 10– of times the signal to noise ratio of other DLS methods like Photon Correlation Spectroscopy (PCS) and NanoTracking (NT).

Method :

• Backscattered laser-amplified scattering reference method

Calculation model :

• FFT power spectrum

Measurement angle :

• 180°

Measuring range :

• 0.3 nm - 10 °m

Sample cell :

• Various sample cell options

Zeta potential analysis :

• yes

Zeta measurement range (potential) :

• -200 mV - +200 mV

Zeta measurement range (size) :

• 10 nm - 20 °m

Electrophoretic mobility :

• 0 - 15 (°m/s) / (V/cm)

Conductivity measurement :

• yes

Conductivity range :

• 0 - 10 mS / cm

Molecular weight measurement :

• yes

Molecular weight range :

• <300 Da -> 20 x 10^6 Da

Temperature :

• range +4°C - +90°C

Temperature accuracy :

• ° 0.1°C

Temperature control :

• yes

Temperature control :

• range +4°C - +90°C

Titration :

• yes

Reproducibility (size) :

• =< 1%

Reproducibility (zeta) :

• • / - 3%

Sample volume size measurement :

• 50 °l - 3 ml

Sample volume zeta measurement :

• 150 °l - 2 ml

Concentration measurement :

• yes

Sample concentration :

• up to 40 % (sample dependent)

Carrier fluids :

• Water, polar and unpolar organic solvents, acid and base

Laser :

• 780 nm, 3 mW; 2 laser diodes with zeta

Humidity :

• 90 % non-condensing

Dimensions (W x H x D) :

• 355 x 381 x 330 mm

• 180° backscatter DLS setup

• Stable fixed optics sample interface – no adjustments required

• Rapid field reversal prevents electro-osmosis

• High concentration zeta potential measurements

• Sample concentration and molecular weight determination

• Universal solvent compatibility

• Frequence Power Spectrum calculation model instead of PCS

• Laser Amplified Detection – high signal to noise ratio