U. S. Environmental Protection Agency, Contracts Management Division (MD-33), Attn: ORDSC, Research Triangle Park, NC 27711

66 -- MERCURY SPECIATION EQUIPMENT SOL PR-RT-99-4XR012 DUE 070799 POC Starry M. Jones, Contract Administrator, (919)541-2897 or Julio Lopez, Contracting Officer (919)541-4474 WEB: ERROR --, jones.starry@epa.gov. The U. S. Environmental Protection Agency intends to negotiate on a sole source basis with Tekran, Inc., 1-132 Railside Road, Toronto, Ontario, Canada M3A 1A3, for a Tekran model 2537A mercury vapor analyzer and Tekran model 1130 mercury speciation unit. Tekran, Inc. has developed a unique automatic continuous cold vapor atomic fluorescence mercury vapor analyzer (2537A), which is capable of measuring elemental mercury vapor (Hgo) concentrations down to 0.1 ng/m3. The model 2537A is a completely integrated microprocessor controlled instrument consisting of a mass flow controlled sampling pump, dual solid gold mercury amalgamation traps, temperature controlled ultraviolet excitation source with closed loop optical intensity control, and internal permeation calibration source. The model 1130 speciation unit includes a heated denuder module, a heated umbilical sampling line, a pump module, a controller module, and two quartz denuders. The model 1130 controller module seamlessly integrates the proprietary analytical and data reduction/storage capabilities of the Tekran model 2537A unit with the new 1130 speciation module allowing for continuous measurement of both elemental mercury vapor (Hgo) and divalent reactive gaseous mercury (Hg+2) at pg m-3 concentrations. All interested parties must submit a written request for the Request for Quotation within fifteen (15) days of this announcement, to the attention of: Starry M. Jones, Contract Administrator, MD-33, 79 T. W. Alexander Drive, Research Triangle Park, NC 27711. No telephone request will be honored. All responsible sources may submit a quote which shall be considered by the Agency. Posted 06/22/99 (W-SN345846). (0173)

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