Sample Preparation & Processing
New Microwave Reactor Series Serves Every Synthetic Chemist’s Needs
The new Monowave series from Anton Paar enhances productivity, improves yields and simplifies handling in synthesis and extraction. From budget-friendly entry level to highly automated solutions, the Monowave series serves every synthetic chemist’s needs.
The Monowave 100 is the most economic, yet powerful monomode reactor, specially made for educational purposes. Many colleges and universities already benefit from the simplified approach to synthesis reactions up to 260°C and 20 bar. Easy handling, intuitive programming via touchscreen, the highest safety standards and supportive literature, prepared for the teaching lab, eliminate the hurdles of microwave chemistry and are characteristic for all members of the Monowave family.
The new Monowave 200 is an upgradeable system for a wide range of applications. Its 850 W of microwave power guarantee for the fastest reactions in volumes from 0.5 mL to 20 mL in snap-capped borosilicate reaction vials or SiC (silicon carbide) vessels. Precise temperature control by an IR sensor, pressure control and a magnetic stirrer are standard for all Monowave models. A ruby thermometer is available optionally for accurate internal temperature measurement. Upgrade options include a camera for viewing reactions directly on the touchscreen.
Top of the line, Monowave 400 enables reactions up to 300°C and 30 bar and reaction times up to 100 h in reaction vessels from 4 mL to 30 mL. New 30 mL wide-neck vessels have been developed for easy processing of bulky solids. With the built-in camera you can observe and optimise your reactions. On-the-fly parameter changes, in-situ generation of experimental reports and documentation on local or network printers via USB or Ethernet connection give the chemist all possibilities. Monowave 400 is the benchmark in microwave chemistry which facilitates the investigation of new reaction pathways.
Monowave 450 combines all features of Monowave 400 with a 24-position autosampler placed on top. This means it has the same small footprint and saves valuable lab space. This reactor includes wide- neck vials for facilitating the work with voluminous solid materials but can, of course, be equipped with all other types of vessels. It is the ideal instrument for automated organic synthesis and solvent extraction.
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Reliable High-Throughput Analysis Systems on Show at Pittcon 2016
The Seal Analytical booth (3831, 3931) at Pittcon 2016 will provide visitors with an opportunity to see the latest technologies in sample digestion systems and colorimetric nutrient analysis instruments. Seal will feature their range of new AQ automated discrete analysers and segmented flow analysers, for high-speed, greater capacity, improved reproducibility and greater flexibility. Seal will also show their range of simple and automated sample preparation/digestion systems for Metals, TP and TKN digestion.
A major feature of the Seal booth will be the new AQ400 automated discrete analyser. The AQ400, manufactured by Seal in the US, has been designed to provide even greater speed and capacity, with improved reproducibility and greater flexibility. The AQ400 has all the advantages of discrete analysis; auto-standard preparation, auto-dilution, automatic method changeover and low reagent consumption. Regulatory approved applications (EPA, ISO) include nutrients such as nitrate, nitrite, ammonia, phosphate, Chromium VI, TKN, TP etc. in water, wastewater, soils, extracts and digests.
Seal’s range of discrete analysers offer minimal operator involvement and the ability to run many different tests on each sample in the same run.
For those laboratories that require high throughput, accurate analysis with very low detection limits for large numbers of samples, there will be an opportunity to see automated segmented flow analysers (the QuAAtro39 for example can run up to 600 tests per hour). The company’s expert chemists will be on hand to help customers decide which method best meets their needs. Further information on Seal Analytical’s products can be found at
www.seal-analytical.com
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High Energy Ball Mill Revolutionises Ultrafi ne Grinding
Retsch’s Emax is an entirely new type of ball mill for high energy milling. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time. The high energy input is a result of an unrivalled speed of 2000 min-1 and the innovative jar design. Thanks to the revolutionary water cooling system, the high energy input is effectively used for the grinding process without overheating the sample. Due to the special grinding jar geometry, the sample is thoroughly mixed which results in a narrow particle size distribution.
Unlike other high energy ball mills, the Emax is capable of continuous grinding operation without interruptions for cooling down. This dramatically reduces the grinding time. The high energy input in combination with the unique cooling system provides perfect conditions for effective mechanical alloying or grinding down to the nanometer range.
A wealth of safety features such as the integrated safety closure of the grinding jar, temperature control with automatic start/ stop system, and integrated imbalance controls make operation of the bench-top mill Emax very user-friendly.
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