Laboratory Products 67 Hydraulic Presses for Laboratory Applications on show at Pittcon 2014
Carver, Inc is exhibiting at Pittcon 2014 in Booth No. 3913 from 2-6 March at the McCormick Place in Chicago, IL. Carver is a leading manufacturer and supplier of standard and custom hydraulic presses for laboratory applications such as pelletising, lab testing, pharmaceuticals, liquid extraction, cell disruption, laminating, specimen preparation and other applications.
Carver’s full line of two-column and four column benchtop, manual and automatic hydraulic presses offer clamping capacities from 12 to 30 tons. The Auto Series press line includes a 48 ton model in 3 platen sizes, 15” X 15”, 18” X 18” (for general purpose applications), and 19” X 19” (for ASTM D3182 rubber test slab preparation). An ‘NE’ digital control system also features full touch screen interface.
Carver also offers the Monarch Model CMG28-12-PCR-X proppant Crush Test press to meet critical demands of ISO 13502-2:2006 with excellent cycle repeatability. For use with frac sand, resin coated sand and ceramic proppant, it provides compression force from 2 to 28 tons within a 2.5% deviation. A proportional hydraulic system is able to apply a constant rate of 3.8 MPa/min.
A wide variety of laboratory accessories, including force verifi cation kits, heating and cooling platen options, repair kits, gauges and thermometers, safety shields, fl oor stands and power units are also available.
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Nanoparticle Tracking Analysis used to Characterise Inorganic Nanopowders and Colloids
Work2Store™ Storage Rack – The Rack That Expands on the Benchtop
The Work2Store™ rack is an innovative solution for more effi cient handling and storage of sample tubes. It features a patent-pending open/ close mechanism that allows the rack to be expanded during use.
NanoSight reports on how Nanoparticle Tracking Analysis, NTA, is being implemented for the characterisation of various inorganic nanopowders and colloids synthesised in the Institute of High Pressure Physics at the Polish Academy of Sciences in Warsaw.
The Institute of High Pressure Physics (IHPP) was founded in 1972 by the Polish Academy of Sciences. The original focus was on high-pressure studies of semiconductors. Now, research covers ceramics, HTc superconductors, biological materials (high- pressure studies of protein folding, and high pressure food processing) and the plasticity of metals (hydroextrusion). The common axis of these studies is the use of high pressure, both as a research tool (a perturbation like temperature or magnetic fi eld) and as a technological method (high-pressure sintering, high- pressure growth of crystals).
Agnieszka Opalinska is a research chemist working on the synthesis and practical applications of nanopowders for use in medicine, optics, optoelectronics, pharmacy and cosmetics. The Institute has developed a microwave, solvothermal technology which has enabled the group to very rapidly obtain homogenous and phase-pure nanoparticles including hydroxyapatite, zinc oxide and zirconium oxide. The size and shape of these nanopowders are easy to manipulate and may be functionalised with organic molecules. With a specialty in the preparation of colloidal solutions too, the group needs accurate and easy-to-use methods of particle characterisation.
Proper characterisation of nanostructure of powders is the key stage for the process. The Institute makes several measurements including nanopowder morphology, density, specifi c surface area, phase composition and crystalite size, all of which are made on dry powder samples. For the past two years, the Institute has used both NTA and DLS to produce complementary sizing results. However, when making the colloidal studies, NTA has a distinct advantage. Ms Opalinska said: “using NTA also gives us the concentration of particles. We like the use of video to be able to visualise the agglomeration process and to help us track the kinetics of the process.”
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The resulting space between tube rows provides additional room for manipulation of samples, eliminating the need for researchers to
transfer microcentrifuge tubes and cryogenic vials from storage racks to their working area and back and helping to prevent cross-contamination between samples.
Key features of the Work2Store™ rack include:
• Holds up to 64 x 1.5/2.0mL micro-centrifuge tubes and/or most standard cryogenic vials up to 2.0mL
• Clear lid locks the rack together for safe handling and transportation
• Wells have a centre depression to stabilise conical tubes and a cryogenic vial lock for one-handed cap removal
• Stackable, autoclavable and with alphanumeric well identifi cation
• Will fi t into standard 2” (52mm) freezer racking
• Open dimensions 310 x 128 x 33.5mm; closed dimensions (with lid in place) 133 x 133 x 53mm
Fits Standard Freezer Racking – No Need for Two Racks!
The rack collapses down to a 5 ¼“ x 5 ¼“ (133 x 133mm) size and is specifi cally designed to fi t standard 2“ (52mm) freezer racking. When open, the rack extends a full 310mm in width. A clear lid holds the rack together during transport and storage.
Ideal for Microcentrifuge Tubes
The Work2Store™ rack addresses one of the biggest frustrations of lab technicians and researchers working with micro tubes: interference from open tube caps. Because the Work2Store™ rack includes space between wells, tube caps do not overlay other tubes/samples. The extra space also helps prevent titrating into the wrong sample tube.
No Need to Transfer Tubes!
Sliding hinges on two sides of the rack provide a mechanism to gently expand the rack during use, and collapse it again when work is complete. Because there’s adequate space to perform titrations, there’s no need to transfer tubes from freezer storage boxes to work racks and back again. The Work2Store™ is a single rack that performs a double function.
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