Member since: 2014
Very robust machines that deliver.
Application Area: Charge determination for surfaces
"The set-up is easy to use and delivers good and reproducible results. I have been very happy with it. One issue that can be problematic is contamination. Cleaning the set-up can be very time-intensive. Be careful in particular with surfactants. The manufacturer has been very helpful in trying to solve such problems and only in cases where they did not have the problem themselves, they did not have a quick answer. But would always try to help. They are also very good in bringing people together. I am still happy with this and would certainly buy it again."
Member since: 2012
Application Area:Streaming Potential
"This machine is working very well. Even on long-term it gives reliable results. We have been reproducing data for a long time. No problem. As soon as a specifically adsorbing chemical comes into the system, it can be difficult to remove it. We have had problems with injections of nano-particles or surfactants. We found them hard to remove and Anton Paar did not have a solution to that. Finally we managed to get rid of the contaminations but it costs a lot of time testing. Also using Bromide with the silver chloride electrodes was more of a problem than what Anton Paar thought. Overall this machine is very good value for the money invested. "
SurPASS™ 3 offers a new level of surface charge analysis. The instrument determines the zeta potential which is related to the surface charge of a solid material in contact with an aqueous solution. Its precision and easy handling makes it the perfect measurement instrument for everyone in this field.
By measuring the movement of a fluid in relation to the solid material SurPASS™ 3 determines the streaming potential from which the zeta potential is directly calculated. The movement of the fluid is free of vibration, which guarantees highly precise results. SurPASS™ 3 combines a proprietary method for liquid transport with a higher time resolution for collecting measuring data.
The accompanying software measures and visualizes the surface charge and allows the determination of the isoelectric point with just one mouse-click. Easy handling is also guaranteed with the plug-in sample holder.
The instrument is designed for different types of operations – from scientific to industrial. New applications in the fields of membranes, biomaterials and semiconductors are possible due to the extended capability for higher applicable pressure.