Delft Solids Solutions is a laboratory for analysis of particle size distribution with electrical measurements such as electrical senzing zone also called coulter counter or electrical mobility analysis: electrical sensing zone coulter counter multisezer beckman coulter emulsion particle concentration aerodynamic diameter particle volume waste water differential mobility analyser aerosol particle size distribution particle counter counter electrical mobility.
For analysis request and more information, see also the main website of Delft Solids Solutions: www.solids-solutions.com
For analysis of particle
size distribution with electrical
measurements such as electrical
senzing zone also called coulter counter or electrical mobility analysis.
The multisezer from beckman coulter is used for electrical
techniques of particle size measures emulsion
and particle concentration providing the
aerodynamic diameter or particle volume. Typically used for waste water.
The differential mobility analyser measures aerosol by electrical mobility.
Qualitative and quantitative analysis of particle size distribution with electrical
senzing zone also called coulter counter. With this particle
counter each individual particle is counted giving information on concentration
and distribution.
Any particle sizing system or emulsion can be characterized with the electrical
techniques of particle measuring system resulting in the particle diameter
and particle count.
The multisizer
is the most versatile particle
size analyzer available today for a multitude of size range materials such
as electrical
techniques of particle measuring. It provides size and volume distributions
in number, volume, surface area and mass, with an overall range of 0.4µm-1200µm.
It utilizes the Coulter
Principle (Electrical
Sensing Zone) to measure particle volume, a direct measurement
of a physical property of the particle.
While retaining and enhancing the analogs circuits developed and refined by
Coulter over many years, the Multisizer
3 incorporates the latest advances in electronics using state-of-the-art
digitizing circuits. High-speed digitalization of the signal allows the use
of pulse area analysis and other techniques for additional particle
characterization. The resulting measurement data can be analyzed and formatted
in numerous ways, or stored and re-analyzed at a later date with no need to
analyze the sample again. The measurement data for each particle analyzed by
electrical
technique is stored. The instrument automatically corrects for coincidence.
For biological or industrial applications, in quality control or research, the
Multisizer 3 you will get the high-resolution and accuracy you demand with electrical
techniques of particle measurements.
Particles suspended in a weak electrolyte solution are drawn through a small
aperture separating two electrodes between which an electric current flows.
The voltage applied across the aperture creates a "sensing zone".
As each particle passes through the aperture (or "sensing
zone") it displaces its own volume of conducting liquid, momentarily
increasing the impedance of the aperture.
This change in impedance produces a tiny but proportional current flow into
an amplifier
that converts the current fluctuation into a voltage pulse large enough
to measure accurately. The Coulter
Principle states that amplitude of this pulse is directly proportional to
the volume of the particle that produced it. Scaling these pulse heights in
volume units enables a size distribution to be acquired and displayed as the
result of
electrical particle measuarement. In addition, if a metering device is used
to draw a known volume of the particle suspension through the aperture, a count
of the number of pulses will yield the concentration
of particles in the sample.
sizing - electrical techniques.
Electrical techniques - electrical sensing zone (coulter counter) and electrical
mobility. Delft Solids Solutions is a laboratory for analysis of particle size
distribution with electrical
measurements such as electrical senzing zone also called coulter counter or
electrical mobility analysis:
electrical sensing zone coulter counter multisezer beckman coulter emulsion
particle concentration
aerodynamic diameter particle volume waste water differential mobility analyser
aerosol particle size
distribution particle counter counter electrical mobility
light
scattering techniques - laser diffraction
- photon correlation spectroscopy - phase
doppler velocimetry - electrical techniques - electrical
sensing zone - optical techniques -
scaning electron microscopy - other
particle analyses - gravitational
sedimentation - sieve analysis