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Retsch    60.149.000075    篩網(wǎng)
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Retsch    60.149.000100    篩網(wǎng)

Particle Analysis Instruments - Retsch Technology

Product Selection

Retsch Technology develops and sells state-of-the-art optical measuring systems for particle characterization based on different measurement techniques:

• Measuring range from 0.3 nm to 30 mm
• Analysis of particle size and particle shape of colloidal materials, emulsions, suspensions, dispersions, powders and granulates.

• Dynamic Image Analysis
• Laser Light Scattering
• Particle size and shape analysis
  ranging from 1 μm to 30 mm
  with Retsch Technology's 
  CAMSIZER^? P4 / CAMSIZER^? XT
• Particle size analysis
  ranging from 0.3 nm to 5 mm
  with HORIBA particle analyzers

Laser Light Scattering

The most important methods for the characterization of particles in the nanometer and micrometer range are dynamic and static laser light scattering (laser diffraction). The static laser light scattering can be used for the analysis of emulsions, suspensions and dry samples.

Particle Analyzer  HORIBA LA-960		Particle Analyzer  HORIBA LA-300
Measuring principle: Mie Scattering Theory according ISO 13320 Measuring range: 0.01 μm - 5000 μm Type of analysis: dry and wet analysis		Measuring principle: Mie Scattering Theory Measuring range: 0.1 μm - 600 μm Type of analysis: wet analysis
Nano Particle Analyzer HORIBA SZ-100
Measuring principle:  - Particle size: Photon Correlation Spectroscopy - Molecular weight: Debye plot method (static light scattering) - Zeta potential: Laser Doppler electrophoresis Measuring range:  - Particle size: 0.3 nm - 8 μm - Molecular weight: 1 x 10^3 - 2x 10^7 g/mol - Zeta potential: -200 mV to +200 mv

Particle Analyzer 
HORIBA LA-960

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The particle analyzer LA-960 operates on the basis of static laser light scattering (acc. ISO 13320) and was developed as a solution to customer requirements for a high-performance, flexible, and easy to use instrument for a wide variety of applications - from particle charactarization of powders and granules to the measuring of suspensions and emulsions. It can be ordered in different configurations for

• Dry measurement
• Wet measurement
• Combination of dry and wet measurement

The complete processing time from one sample to the next is only 1 minute, this is only a quarter of the usual time up to now. An integrated system and software automation guarantees simple operation and excellent reproducibility of the measuring results. The measuring cells are located on a movable slide which makes changing the dispersion unit a matter of seconds.

Single range-Samples can be measured over the complete range (0.01 to 5000 μm) without the need to combine different measurements and/or change lenses.

The particle analyzer LA-960 features a powerful circulation system for wet measurements. Thanks to the increased sensitivity small particles with a diameter up to 10 nm are reliably detected. In combination with the evaluation software the system sets new standards regarding precision, speed and resolution.
For dry measurements the effective dispersion unit PowderJet can be used. Thanks to the combination of dry measurement cell with integrated dispersion nozzle and suction mechanism, a great variety of powders can be dispersed and measured quickly and reliably.

Product Advantages

• Compact design
• Dry and wet measurement possible
• Very wide single measuring range from 10 nm to 5 mm
• Analysis according Mie Scattering Theory
• Sample throughput time of only one minute
• Extremely high resolution in the sub-micron range
• Exchange of measuring cell within seconds
• Effective ultrasound and stirring dispersion
• 21 CFR Part 11 compliant software

Features

Function Principle

The good results for measurements in the sub-micron range are mainly based on the fact that with very fine particles the strong, blue LED light source ensures a clear signal with large scattering angles. These signals are recorded by the innovative 4-channel detectors with increased sensitivity and an extremely high reading frequency of 5,000 values per second. This makes it possible to measure many new materials in the nanometre range which up to now required other methods such as photon correlation spectroscopy (PCS). This is a clear advantage for the user because the analytical performance in combination with a wide measuring range can, in certain circumstances, save the expenditure for a further particle analyser.

The optical layout of LA-960 uses a light path that is about 4 times the length of that of conventional devices. By extending the light path, the signal/noise ratio was considerably improved.

Thanks to the reverse Fourier optics and the light path folded by mirrors, a very compact design size was realized. A newly developed segmented multi-element detector with special arrangement and increased sensitivity of the individual detectors allows the light diffracted at a small angle by large particles to be accuray recorded.

The effectiveness of these new developments is exemplified by the very high resolution of LA-960. For example, it is possible when measuring a multi-modal distribution to resolve five separate modes. Three of these modes can be within a single decade.

Particle Size and Particle Shape Analysis

Retsch Technology offers high quality optical systems for the characterization of particle size and particle shape. These systems are used in various industries for production and quality control as well as in R&D. Retsch Technology particle analyzers use different measuring principles and cover a size range from 0.3 nm to 30 mm.

• The Horiba instruments which operate with laser light scattering analyze fine powders, suspensions, emulsions and colloidal substances.
• The CAMSIZER is one of the most successful systems using digital image processing for high resolution measurement of particle size distributions. It opens up new possibilities for the shape analysis of dry powders and granulates.

• Dynamic Image Analysis
• Laser Light Scattering
• Particle size and shape analysis
  ranging from 1 μm to 30 mm
  with Retsch Technology's 
  CAMSIZER^? P4 / CAMSIZER^? XT
• Particle size analysis
  ranging from 0.3 nm to 5 mm
  with HORIBA particle analyzers

All systems feature new innovative technologies and set standards in their product segments. Customer requirements are taken seriously and often find their way into hard- and software upgrades and developments. The systems are suitable for automated and online operation thus fulfilling the increasing requirements of analysis and process engineering.

CAMSIZER^? P4

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The CAMSIZER P4 is a compact laboratory instrument for simultaneous measurement of particle size distribution, particle shape and additional parameters of powders and granules.


Based on dynamic image analysis by the unique,patented dual-camera technology pourable solids in the range from 20 μm to 30 mm can be measured. 


Faster cameras with higher resolution, a brighter light source and improved data processing capabilitiesdifferentiate the CAMSIZER P4 from its predecessors. These improvements increase the measurement speed (~ 1 - 3 minutes); allow more precise shape analysis of small particles and an extended size measurement range. 



The extended software functionalities now include animage library containing pictures and contours of each particle and its respective shape and size readings, and a 3-dimensional diagram (3D Cloud scatterplot) of the analysis parameters. New particle shape descriptors allow for analysis of the roundness of particles.


Other well-proven functions like the certified calibration reticle, the automated air flow in the measurement zone, and the motorized funnel height adjustmenthave been preserved in the CAMSIZER P4. These functions provide simple operation, a robust and maintenance-free instrument as well as stable and reliable measurement results even if operated 24/7.

In combination with the optional AutoSampler efficiency can be increased by high sample throughput due to the automated sample measurement.

For online applications the CAMSIZER P4 is available in an online version.

Product Advantages

• New hardware:
• NEW: brighter lightsource
• NEW: improved camera resolution
• NEW: higher resolution lenses
• NEW: faster interface between cameras and PC
• New Software:
• NEW: Particle Library function: database for images and characteristics of all particles
• NEW: 3D Cloud representation of size and morphology parameters in 3 dimensions
• NEW: shape parameters for roundness and sphericity (ISO13503-2 and API RP 56/58/60)
• Advantages:
• Excellent comparability to sieve analysis , also for multimodal distributions
• optimized, intuitive software
• several language versions (English, French, Spanish, Chinese, Russian, German, and many other languages)
• Detailed particle size analysis - results are saved in more than 3,000 size classes
• Simultaneous analysis of particle size, shape, number, density and transparency
• Greatest possible accuracy and reproducibility
• No-contact, non-destructive measurement
• Very short measuring time (2-3 min.)
• Calibration in seconds
• Simple handling prevents operating errors
• Password protected instrument settings
• Automatic measuring procedure
• Robust design, insensitive to dust and vibrations
• Self-cleaning, wear-free, maintenance-free
• Less time- and labor-intensive than sieve analysis

Features

Function Principle

The CAMSIZER P4 uses the principle ofdigital image analysis (ISO 13322-2). The sample is transported to the measurement field via a vibratory feeder where the particles drop between a planar light source and two CCD cameras. The projected particle shadows are recorded at a rate of more than 60 images per second and analyzed.In this way almost every single particle in the bulk material flow is recorded and evaluated. Thus, it is possible to measure a wide range of particles from 20 μm to 30 mm extremely accuray, without having to switch measuring ranges or make adjustments.

Thanks to its extremely short exposure times, the novel LED strobe light source allows very sharp images to be produced and distortion-free determination of the projection areas. The sharp contrast allows, at the same time, details of the surface structure of the particles to be seen almost like through a microscope. The frequency of the light flashes is so high that the strobing is not visible to the naked eye.

With the unique, patented dual-camera system a great depth of sharpness, and therefore maximum precision across the entire measuring range, is obtained.The zoom camera provides maximum resolution down to the fine range, while the basic camera also records larger particles and guarantees a high statistical certainty in the results. This ensures the excellent reproducibility of the CAMSIZER measuring results, even if only a relatively small sample amount is available. The results are saved in at least 3,000 size classes.

Subject to technical modifications and errors

CAMSIZER^? P4 versus sieve analysis – maximum benefits from minimal efforts