We use the GERSTEL MultiPurpose Sampler, with its huge range of unique accessories, to automate the processing of your samples.

This gives seamless integration with Agilent Technologies’ GC and GC-MS platforms and Syft Technologies' SIFT-MS instruments.
If you are involved in analytical R&D, you just don’t know where your research will lead, or what you may have to do tomorrow.

For sample preparation, automation may well be important to you and you will certainly benefit from the great flexibility the GERSTEL MultiFlex MPS gives you.
AutoPrep solutions, based upon the GERSTEL MPS are built with three things in mind: dependability, throughput and low consumable costs.

All have been tested in our laboratory and come with unlimited application support.
SIFT-MS joins GC-MS and LC-MS as one of the three essential tools that every analytical chemist should have.

SIFT-MS measures the concentrations of volatile substances (organic and inorganic) simply, directly and in real time.
The CF200 Robotic Centrifuge is capable, compact and integrates full with the GERSTEL MultiPurpose Sampler.

The CF200 can process up to six samples simultaneously for maximum productivity.
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They know the instruments we sell inside out and will find sensible solutions to to the analytical challenges you face.
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Our first priority is to maintain a great team spirit and we only employ people with great attitudes.

We believe in continual learning and personal development. We train our staff well.

Find out more about them here.
Our role is to bring the World's best analytical technologies to laboratories in the UK and Ireland.

We do this in partnership with some great companies.
We are always on the look out for talent.

Find out more about current vacancies and careers at Anatune

Time to Change the Way you Extract Water Samples?

Typical waste water sample

Waste water can be a problem for solid phase extraction

If you are an environmental analyst workin with GC-MS, sample preparation by solid phase extraction is an attractive alternative to liquid-liquid extraction when working with water samples. Unfortunately it doesn’t always work out in practice. There are a number of reasons SPE goes wrong (many of which are avoidable). One such problem is that if the sample contains any particulate material, this will either result in very slow flow-rates (if you are lucky) or will block the cartridge completely (if you are not). You could filter the sample of course, but you may then have to separately extract the solids (the Water Framework Directive requires this nowadays).

There has always been a way around this problem and that is to use SPE discs rather than cartridges. Discs have a much greater surface area and are much more permeable than cartridges. Samples flow through the extraction media much faster, the solids have less of a tendency to bung-up it up and when you elute the media with solvent, you extract the solids from the sample at the same time.

Why then didn’t the use of discs for the extraction of environmental water samples taken-off in Europe the way that it has in the USA?

There are two reasons. Firstly, in the past, although discs handle particulates better than cartridges, they weren’t perfect in that respect and they didn’t solve the particulate problem sufficiently well. Secondly, compared to cartridges, discs were expensive at £8-10 each, and although it is possible, in theory, to reuse discs, this never turned out to be a practical proposition.

However, things have changed and within the last few months several labs are looking at discs afresh and finding that they are working out this time around.

So what has changed?

Firstly, a series of incremental developments have transformed the efficiency with which discs can handle very dirty samples, this makes life much easier AND enables larger sample volumes to be extracted without a serious time penalty.

Secondly, and most importantly, one disc manufacturer (Horizon Technology)  has now realised that discs will only sell in Europe if they are priced sensibly. We sell Atlantic discs in the UK and a new pricing structure that has recently come into play means that it is now possible for you to buy discs in quantity for less than a fiver per disc. OK, they still cost a bit more than SPE cartridges, but hey, SPE cartridges don’t work at all for gunky samples.

Suddenly, some analysts are back using a discs again and speaking very enthusiasticly about how well they work.

If you want to give this a go, I have a limited supply of free-trial packs of Atlantic discs.

Email us on enquiries@anatune.co.uk and one of our technical staff will arrange to give you a trial pack of the most suitable type for your application and some vital tips on how best to use them.

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