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Quick and Gentle Air Jet Sieving of Fine Powders


The Air Jet Sieving Machine AS 200 jet from Retsch is particularly suitable for low density materials with particle sizes in the lower micron range which tend to agglomerate. It is used with one sieve of 10 microns mesh size or more. The procedure is very gentle on the material as no mechanical sieving aids are required. The average sieving time is 2-3 minutes.


The sieving machine can be optionally equipped with an automatic vacuum regulation which constantly monitors and maintains the air flow thus increasing the reproducibility of the sieving process. The Open Mesh Function, a procedure which greatly reduces the number of near-mesh particles, provides optimum separation efficiency and excellent reproducibility.


Sieving time and nozzle speed are conveniently set with a single button, the settings are shown in the graphic display. The Quick Start Mode allows to start the sieving process under standard conditions without entering parameters. The Retsch software EasySieve®


can be used for automated evaluation and documentation. More information online: ilmt.co/PL/p30j 49697pr@reply-direct.com


Positive Pressure Manifold for SPE Offers Consistent Flow Control for Improved Results Gilson announces the introduction of the ASPEC®


Positive Pressure Manifold for solid phase extraction (SPE). The ASPEC


manifold offers an initial step to SPE automation for clinical, forensic and food or beverage testing laboratories. With the ability to accommodate 96-well SPE plates, the ASPEC manifold is also an ideal choice for sample cleanup prior to LC-MS for bioanalysis.


The ASPEC Positive Pressure Manifold uses positive pressure gas to force viscous samples into SPE cartridges, unlike traditional SPE vacuum manifolds. The multiple adjustable flow rates improve consistency among samples and recoveries, and ensures uniform flow for both low- and high-viscosity solutions.


The ASPEC Positive Pressure Manifold, with its single gas input and small footprint, incorporates easily into laboratory workflows and provides a fast and simple way to prepare several samples in parallel for later analysis by chromatography.


The universal design of the ASPEC Positive Pressure Manifold makes it compatible with popular formats, including 1, 3, and 6 mL SPE tabbed and tabless cartridges and 96-well SPE plates. When combined with Gilson’s PLATEMASTER® microplate pipetting device, the ASPEC Manifold greatly increases sample preparation throughput to meet increased testing demands in the clinical, forensic and food or beverage laboratories.


More information online: ilmt.co/PL/2oOy 45813pr@reply-direct.com Mixed-Batch Food Sample Microwave Digestion


With stricter food industry regulations now in place, demand for trace metals analysis at lower detection levels is a fundamental task today. ICP, once the standard for food metals analysis, is rapidly being replaced by ICP-MS, placing increased emphasis on sam ple preparation methodologies. Closed-vessel microwave digestion has proven to be an effective technique, offering fast, complete di gestions, a clean environment, and effective recovery of volatile compounds. Drawbacks have been the limitations in running diges tion on several matrix types simultaneously, the handling time and the maximum sample amount.


Milestone’s SRC microwave digestion, is a revolutionary new approach, incorporating all of the benefits of closed vessel microwave digestion with new levels of convenience and effectiveness. The Milestone ultraWAVE is a bench-top instrument that operates at very high pressures and temperatures, capable of processing large, dissimilar and difficult samples quickly, easily, all without batch ing.


The data shown in the Milestone Technical Note demonstrates that the digestion of samples in the ultraWAVE results in uniformly high analytical data quality, making it the ideal solution for trace metals detection in food.


More information online: ilmt.co/PL/OJLD 49348pr@reply-direct.com


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