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Increase Accuracy with Automatic Melting Point Determination
LABORATORY PRODUCTS
Planetary Ball Mill with Sunken Grinding Bowls
Discover a completely new dimension of high tech grinding with the new Fritsch premium line high performance planetary mill. For the first time users will see a planetary mill with sunken grinding bowls.
Characteristic features of conventional planetary ball mills are grinding bowls clamped onto the solar disk of the mill. This limits the maximum rotational speed, because from a certain borderline rotational speed the centrifugal powers asserted on the bowl, are so high, that the fasteners may not be able to hold the bowl. Resulting in damaged mills and bowls.
On the other hand, the grinding of materials into the nano ranges require – an increasingly demanded task – much higher applications of energy and therefore higher rotational speeds as previous planetary ball mills allowed.
The new Excellence Melting Point Systems from Mettler Toledo enable fast and accurate determination of the melting point or melting range, therefore saving users time and money by easily identifying impurities in raw material analysis.
Simple to use, the instrument’s unique design means that just one click is needed to run a melting point determination. The short cut key system allows individually stored measurement programmes to be started with a single press on the colour touchscreen.
The innovative MP range eliminates potentially disastrous and expensive consequences by allowing users to identify impure or wrongly labeled materials easily and accurately. All models are supported with high-resolution video recordings ensuring you don’t miss a thing. Plus the colour video capture enables substances that are coloured or decomposed during melting to be studied with greater accuracy. The range also offers: One Click™ operation and superior ergonomics; easy playback of high resolution colour videos; simultaneous measurements of up to six samples; and compliance to standards.
LAB PRODUCTS Circle no. 509
The sinking of the grinding bowl into the solar disc of this mill solves this problem. Now the centre of gravity of the bowls is on the level of the solar disc. The appearing centrifugal powers produce considerably lower moments of tilt, which in turn allow clearly higher rotational speeds of the mill. With the new Fritsch premium line up to 150% higher application of energy is possible. The grinding time into the nano range is hereby considerably reduced. For certain materials this increased application of energy makes the production of nano particles with planetary ball mills possible.
An additional decisive advantage of the sinking of the bowls into the solar disk is the new tensioning unit for grinding bowls SelfLOCK. The accidental dismantling of the bowl during grinding is impossible. Additionally, the user cannot operate it incorrectly. This new safety concept fulfils the risen demands of customers.
LAB PRODUCTS Circle no. 510
Versatile Conductivity Probe
Sentek are pleased to introduce a new 4 pole Conductivity Probe to their range. It is compatible with a number of conductivity meters on the market and is ideally suited to the measurement of deionised water.
The 18 MPRB-USP probe has the following specification: range of 0.055µS - 200µS; temperature range of 0-50oC; PVC body type; 316 stainless steel plate material: a diameter of 12.7mm; and a cell constant of 0.08.
LAB PRODUCTS Circle no. 511 ADVERTORIAL Perform Large Volume Solid Phase Extraction with New Enhancements for the Gilson GX-271/4 ASPEC
You can now achieve large volume solid phase extraction with the Gilson GX-271/4 ASPEC solid phase extraction system from Anachem, processing samples up to and beyond 1 litre. Ideal for performing pre-analysis sample clean-up, the standard Gilson GX-271/4 ASPEC utilises 1ml, 3ml and 6ml SPE cartridges with sample volumes as high as 100ml. However, when using low concentrates of analytes in water, many SPE methods require the loading of up to 1 litre of sample which is now possible with the new large volume upgrade.
The system’s large volume capabilities are achieved by incorporating a set of Valvemate II switching valves and new racks. These select samples directly and allow them to be positioned off the liquid handler bed and drawn straight from their bottles. As well as its 1 litre loading capacity, the (LV SPE) ASPEC can accommodate the 1ml, 3ml and 6ml cartridges for methods that require larger volumes of elution or faster throughput.
A new mobile rack specific for 47mm SPE disks is now available for use with the Waters Oasis™ HLB Disks and Bakerbond products. Typical loading flow rates between 50 and 200 ml/min can be achieved with the use of a new sample loading pump, pumping both clean and dirty water. This is all available on the Gilson ASPEC, a highly versatile platform that can still deliver sub-microilitre volumes and multiple litres accurately on demand. Operated by Gilson Trilution®
LH software, a
powerful and simple to use interface, the (LV SPE) ASPEC allows users to run samples with minimal effort while still retaining the flexibility required for method development needs and routine QC requirements.
Contact Anachem by: Tel: 01582 747500, Email:
response@anachem.co.ukor or visit Anachem online at
www.anachem.co.uk.
Circle no. 512 Circle no. 513
LABMATE UK & IRELAND - SEPTEMBER 2009
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