Model HGX-200 - Hydride Generation/ Cold Vapor System Brochure

Place your order: CETAC.COM || SALES@CETAC.COM || PHONE 800.369.2822 || FAX 402.733.5292HGX-200Hydride Generation/Cold Vapor SystemThe HGX-200 is a specialized system for the generation of volatile hydride species or the reduction of mercury to Hg(0) (cold vapor). Elements of interest that form volatilehydrides include the dif ficult to measure elements As, Se and Sb.The special U-shaped GLS incorporates a “frosted” glass post that provides a high surface area for liquid film evaporation and release of hydrides and Hg(0). This feature helps to enhance analyte sensitivity. The GLS also features a porous PTFE (polytetrafluoroethylene) membrane and droplet separator to achieve complete gas/liquid separation and reduce signal noise.The integrated gas flow meter enables the addition of a second Ar gas flow after the GLS membrane. This second gas allows for best optimization of washout time and reduction of signal noise. The small footprint of the HGX-200 allows convenient placement in the sample rack tray of the CETAC ASX-520 autosampler for larger sample runs. The top of the HGX-200 transparent stand has a built-in carrying handle for easy transport.Two peristaltic pumps (user provided) are recommended: one pump for sample and reagent addition and one pump to remove liquid waste from the GLS.A complete list of HGX-200 references is available at www.cetac.com/literature/literature_references.asp A number of elements can be chemically converted to gaseous forms: As, Bi, Ge, Pb, Sb, Se, Sn, Te to volatile hydrides and mercury to Hg(0). Sample solutions are typically mixed with a sodium borohydride (NaBH4) solution for hydride generation and Sn(II)/HCl for reduction of mercury to Hg(0). This conversion offers a number of advantages for elemental measurement by ICP-AES or ICP-MS. The nearly 100% analyte transport efficiency combined with no water loading (as from conventional nebulizer systems) of the ICP can provide signal enhancements up to 100 fold. This feature is particularly advantageous for difficult to measure elements such as As and Se. An additional benefit is the separation of analytes from potential matrix interferences. Examples are the argon chloride (ArCl) ICP-MS interferences on 75As and 77Se and tungsten oxides (WO) on various Hg isotopes.DESIGN FEATURESThe CETAC HGX-200 system features a specialized gas liquid separator (GLS), dedicated reagent vessels, clearly labeled tubing and connections, solution mixing blocks and coils, and a built-in gas flow meter. The peristaltic pump for sample, reagent, and waste flows is user provided.NEBULIZERSCETAC.COM || SALES@CETAC.COM || PHONE 402.733-2829 || TOLL-FREE 800.369.2822 || FAX 402.733.5292HGX-200PART # DESCRIPTION IMAGESP7057 Peri Pump Tubing, Black/Black, 0.76 mm i.d. (0.030 in) (12/Pkg)SP5231 Peri Pump Tubing, Purple/White, 2.79 mm i.d. (0.1099 in) (12/Pkg)SP7042 Interface Kit –Thermo Element2 & Neptune ICP-MSCARRIERTEFLON FILTERDRAINADDITIONAL GASTO PLASMAGASFROSTED POSTSAMPLE ANDREAGENTSTechnical SpecificationsDimensions: Width: 30.5 cm (12")Height: 43.8 cm (17¼")Depth: 21.9 cm (8¾")Weight: 3.4 kg (7.5 lbs)Gas Flow Meter: 1 L/min Ar, up to 200 psi pressureReagent Bottles: Acid, NaBH4, HCl/Sn (II), 1 L eachWarranty: 12 month limitedHGX-200 GAS LIQUID SEPARATORPART # DESCRIPTION IMAGESP7042D Interface Kit –Nu Instruments & Agilent 7500 /7700 ICP-MSSP7060 Gas Liquid Separator (GLS) (2 Pieces)SP7043 Membrane Assembly for Gas Liquid Separator