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Science  21 Mar 2014:
Vol. 343, Issue 6177, pp. 1378
DOI: 10.1126/science.343.6177.1378-a


The PURELAB Chorus range of laboratory water systems allow customers to assemble a truly bespoke system, fully optimized to best fit their application, budget, and the configuration of their laboratory. PURELAB Chorus systems are particularly well suited for use in laboratories with limited laboratory space and those that must retain precise control over dispensing methods and storage options. The PURELAB Chorus range includes three water purification systems specifically designed to deliver the necessary water quality at the required through-flow: Chorus 1 for ultrapure Type I+/I, Chorus 2 for pure Type II, and Chorus 3 for general pure grade Type III water. PURELAB Chorus 1 produces the highest inorganic water purity available by applying advanced PureSure deionization, which removes even trace amounts of those ions that could otherwise interfere with ultrasensitive analysis methods such as high-performance liquid chromatography, Inductively Coupled Plasma (ICP) Atomic Emission Spectrometry, or ICP Mass Spectrometry.


The new Repeater M4 is designed to minimize the time and effort required for precise and highly accurate repeat dispensing tasks. The new Repeater M4 works with nine sizes of Eppendorf Combitips advanced. A built-in sensor detects the Combitips automatically, showing the tip volume on an easy to read display and eliminating the need for manual volume calculations. In addition, the new central Combitip ejector supports one-handed operation for contact-free tip ejection that avoids any risk of contamination. Since there are 20 volume settings for each of the nine Combitips, the Repeater M4 can dispense volumes from 1 μL to 10 mL and completes as many as 100 operations without refill. This is significantly more than similar handheld dispensers on the market. An integral step counter displays the number of steps executed, allowing the user to resume with confidence should there be any interruption while dispensing. With the ability to conduct a maximum of 100 dispensing actions accurately and precisely, the new Repeater M4 is ideal for applications involving 96-well plates, for example.


The new VIAFLO II multichannel electronic pipette range combines ultra-lightweight design and unsurpassed operation comfort enabling users to improve efficiency in their working environment. VIAFLO II electronic pipettes together with INTEGRA's wide range of GripTip pipette tips form the perfect pipetting system. GripTips snap into place with minimal tip loading effort, providing a secure connection. The integral color screen together with the easy to navigate touch wheel user interface promote ease of set up and operation. All VIAFLO II pipettes offer a choice of up to 10 predefined pipetting modes (including repeat dispense, serial dilute, and manual pipette) enabling users to quickly perform typical pipetting operations. For more demanding pipetting routines, up to 20 personalized custom programs can be created using the following steps: aspirate, dispense, mix, purge, and prompt. Available in 8-, 12-, and 16-channel versions, VIAFLO II electronic pipettes offer an optimized precision pipetting solution from 0.5 μL to 1,250 μL.


A new version of the DrySyn heating block allows scientists to perform safe, productive heating and stirring experiments with pear-shaped flasks commonly used with rotary evaporators. Pear-shaped flasks are popular with organic chemists as concentrated samples can be removed more easily than from a round bottom flask. Pear-shaped flasks are used for evaporating solutions to dryness post synthesis using a rotary evaporator, the 'rounded V' shape of the flasks enables solid materials to be scraped out more efficiently than from a round bottomed flask. Using, this version of the DrySyn, chemists can eliminate the need for sample transfers between reaction flask and an evaporator flask. Made of chemically resistant, anodized aluminium, the range of heating blocks for pear-shaped flasks (100 mL, 250 mL, 500 mL, 1,000 mL) offer excellent heating performance to over 300°C and can heat a reaction flask 25% faster than an oil bath.


Enhanced ultraviolet response and good light throughput with a robust and open architecture set the Commander apart. This triple spectrometer for Raman works in the 185 nm to 2,200 nm region with a selection of diffraction gratings. Operating at f/5 it has impressive light gathering power. It delivers edge rejection within 5 cm-1 in the visible spectral region. This instrument is free from chromatic aberrations, using mirrors throughout. In addition, the aspheric mirrors correct and improve imaging performance for excellent signal levels at the detector, even with weakly emitting samples. The entrance slit width and intermediate aperture in the filter stage allow users to set the slope of the edge rejection as well as the wavelength range at the detector. The primary spectrograph is vacuum compatible. The double-monochromator filter stage and sample area may be nitrogen purged to eliminate water and oxygen absorption. Under ideal circumstances, this combination of environmental control allows work to wavelengths as short as 160 nm.

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  • Newly offered instrumentation, apparatus, and laboratory materials of interest to researchers in all disciplines in academic, industrial, and governmental organizations are featured in this space. Emphasis is given to purpose, chief characteristics, and availabilty of products and materials. Endorsement by Science or AAAS of any products or materials mentioned is not implied. Additional information may be obtained from the manufacturer or supplier.

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