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Aerosol-to-Liquid Particle eXtraction System - ALPXSPrinciple of OperationAir is drawn into the ionization chamber.Particles assume a negative charge.Collection electrode is maintained atpositive high voltage and particles areattracted to it.As the particles migrate towards thecollection electrode they are trapped bythe liquid layer that continuously washesthe surface of the collection electrode andaccumulate.An auxiliary pump transports a very smallfraction of the reservoir volume to anICPMS, ICP-OES or AA for determination ofmetal species in the liquid.Technical SpecificationsFootprint: 8” x 8” with chimney height23” (approx).Power requirements: 12vdc @ 1.25A,battery or converter.Air intake flow rate: 200-300 LPMIonization voltage: 0-10kV, adjustable.Liquid reservoir volume: 20-100 mLs.Duty cycle: Continuous.ALPXS is a 2003 R&D 100 Award WinnerMeinhard Glass ProductsA Division of Analytical Reference Materials International Corporation700 Corporate Circle, Suite A, Golden, CO 80401Tel: (303) 277-9776) Fax: (303) 216-2649Email: Sales@Meinhard.com Web: www.meinhard.com
ANALABTel: +33 (0)3 88 51 79 51 Fax: +33 (0)3 88 51 79 13E-mail: analab@wanadoo.fr Web: www.analab.frEVAPOCLEANPatentedEvapoclean 6.25.R1 with programmable temperature controllerCLOSED-ENVIRONMENT ENVIRONMENT forEVAPORATION, PRECONCENTRATION,DISSOLUTION, ACID DIGESTIONDeveloped at the Institute of Physics of the Earth (Paris, France), the primary function of the EVAPOCLEAN isto preconcentrate various chemical solutions under controlled conditions. Evaporation (at temperatures upto 250 °C) and immediate condensation occur in a closed system that does not exchange with laboratoryair.The EVAPOCLEAN device allows the analyst to process organic solvents, aqueous solutions, acidic andalkaline solutions, and concentrated solutions which derive from the dissolution of various materials withaggressive reagents (HF, HCl, HBr, HNO 3, HClO 4, H 2S0 4, H 2O 2, NH 4OH). Applications include rawmaterials (rocks, minerals, ores, natural waters), industrial and advanced materials (cements, metals, glassproducts, ceramics), as well as basic chemicals for industry, highly pure chemicals, and liquid and solidwastes.EVAPOCLEAN devices are also designed for trace and ultra-trace element analyses which require acleanroom environment. Evaporation-condensation cells are made with non-contaminating, corrosionresistant,high-purity grade fluoropolymer materials, machined under controlled conditions. They do notemit dust particles.Depending on the EVAPOCLEAN model that is chosen, 1 to 12 samples can be processed simultaneously orindependently, without risk of cross-contamination. It is possible to evaporate to dryness or to leave a smallresidual volume of the evaporating liquid, to concentrate solutions, and to purify liquid reagents.The top face of EVAPOCLEAN devices is equipped with ports to allow acid digestion of samples andcleaning of jars by reflux of acid vapor or water vapor in the closed container.The basic EVAPOCLEAN incorporates a simple controller which raises the block temperature to a specifiedtemperature and holds the temperature for a specified period, after which the EVAPOCLEAN will cool toambient temperature. An optional programmable controller stores up to four programs of sixteensegments each.
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