SAMPLE PREP FOR MALVERN ZETASIZER FULL
One to determine a frequency shift, which can give a full zeta potential distribution and a second known as PALS, where the phase shift is measured. The velocity is measured by the laser Doppler technique. An electrical field is applied to the electrodes, and particles or molecules that have a net charge, or more strictly a net zeta potential will migrate towards the oppositely charged electrode with a velocity, known as the mobility, that is related to their zeta potential. The fundamental physical principle is that of electrophoresis.Ī dispersion is introduced into a cell containing two electrodes. (If you are using the instrument for the first time, create a personal folder in C:\Documents and Settings\zetasizer\My Documents\Malvern Instruments\DTS\Measurement Data 10. Create new measurement file in your personal folder: File New Measurement File.
This mobility is often converted to Zeta potential to enable comparison of materials under different experimental conditions. Information on sample preparation can be found in Chapter 6 of the manual.
All these characteristics make this automated modular system unique on the market.The zeta potential of the sample will determine whether the particles within a liquid will tend to flocculate (stick together) or not.Įlectrophoretic Light Scattering (ELS) is a technique used to measure the electrophoretic mobility of particles in dispersion, or molecules in solution. Easy and safe to use, it can progressively be upgraded module by module to fulfill your specific needs. It processes your samples in a specific order to meet your priorities. The Claisse rFusion modular system is equipped with a sample tracking module that ensures the traceability of all the fusion steps. It is also known to be highly precise, accurate and repeatable, thus favoring good analytical results. Using the Claisse rFusion automated station minimizes human fatigue and distractions often occurring while performing repetitive tasks. The Claisse rFusion station operates without any supervision and allows the technicians to do other tasks in the laboratory. Each sample can also be associated to a different weighing and fusion program. It can perform more than one task at the same time and manipulate many crucibles simultaneously. This high technological instrument has six fusion positions and can prepare many types of samples during a single operation cycle. This automated station provides our customers with a great ROI by maximizing productivity and improving analytical results. The Claisse rFusion modular system is very versatile and can be used by mining, cement, steel, ferroalloys, refractories as well as catalysts industries. It is generally divided in two parts: a weighing station including Claisse TheAnt automatic doser and a fusion station equipped with two Claisse M4 fusion instruments. Place in instrument with the Malvern logo facing forwards (see the cell box for more details). The Claisse rFusion station is an automated modular system that doses, mixes and fuses samples to prepare them for XRF analysis. When the sample reaches half way round the U, turn upright and continue to fill.
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