Archive for the Typical Applications Category

Investigating Sea Water

Investigating sea waterToday my research on the Beckman Coulter website www.beckmancoulter.com has turned up some useful application notes on using a Coulter Counter to count and size particles and cells in sea water. You can find and download the document yourself by visiting the site, clicking on the appropriate product area and then choosing ‘Literature’ in the right-hand column. Continue reading Investigating Sea Water

What Can a Coulter Counter Measure?

What can Coulter Counter measure

The more I read about this subject, the more I’m impressed by the versatility of the Coulter Counter as a particle characterisation instrument. In answer to the question in the heading, the obvious answer is the size and number of particles in a sample. The full answer, of course, is much deeper than that. Continue reading What Can a Coulter Counter Measure?

Coulter Counter Application in Copper Plating

A basic laboratory set-up to demonstrate the copper plating electrochemical process

A basic laboratory set-up to demonstrate the copper plating electrochemical process

The manufacturing of printed circuits often makes use of an electrochemical process known as acid copper plating. One of the potential pitfalls in this process is contamination of the electrolyte with particles, so manufacturers must keep a close eye on the numbers and sizes of any particulates present. Which is where a Coulter Counter comes in… Continue reading Coulter Counter Application in Copper Plating

Particle Size and Concentration in Oils

oil_can

If you go to the Beckman Coulter website, www.beckmancoulter.com, look for the type of product in which you are interested – say Coulter Counter – and then click on ‘Literature’ in the right-hand column, you will open up a whole world of information. For example, I’ve just come across some application notes for use of a Beckman Coulter Multisizer 3 Coulter Counter in determining the size and concentration of particles in oils. Continue reading Particle Size and Concentration in Oils

Evaluating Particle Content and Filtration Efficiency in Beer

beer

What could be more important than testing the quality of beer? I have my own traditional method, which involves downing large quantities and then observing the effects, but as a scientist I am aware that there are many flaws in this approach. While looking through the Beckman Coulter website I recently came across an interesting paper on how to use a Coulter Counter in assessing the particle content of beer and evaluating the efficiency of the filtration applied to it. Continue reading Evaluating Particle Content and Filtration Efficiency in Beer

Coulter Counter Used for Particle Counting and Sizing in Drinking Water

Drinking water

Here is a good example of how a Coulter Counter can be used. In this case, it’s to find out about the particulate content of water – which is essential information for those involved in water treatment and management. Continue reading Coulter Counter Used for Particle Counting and Sizing in Drinking Water

Coulter Counters in the Study of Bacteria

Bacteria

As you will probably have read by now, the Coulter Principle was discovered in the 1940s by Wallace Coulter, who used it to develop a very quick and efficient way of carrying out blood cell counts. Since its introduction, its uses have expanded dramatically. Today, Coulter Counters can be found counting and sizing anything from toners to explosives, and from food to construction materials. Even so, the Coulter Principle still has a major role in the field of human health. Continue reading Coulter Counters in the Study of Bacteria

Applications Of The Coulter Principle

the coulter principle in the multisizerTo date, at least 8,000 references to Coulter Principle technology have been documented. On this page we will give just a very brief summary of its uses, but we will expand on that information elsewhere on the site. If you are in any doubt as to whether Coulter Counters are the answer to your problem, Meritics will be happy to look at your application and advise you personally.

Essentially, Coulter Counters are the ideal choice if you need very accurate and quick measurement of both size and concentration. Instruments which depend on light scattering measurements, rather than the Coulter Principle, cannot provide data on concentration. Importantly, Coulter Counters can be used regardless of material and particle colour, shape, composition and refractive index. Continue reading Applications Of The Coulter Principle