U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

66 -- DIGITAL IMAGING SYSTEM SOL ORD # 121 DUE 051999 POC Hans Schellhas (513) 487-2055 WEB: na, na. E-MAIL: U.S. EPA -- Cincinnati Contracts Management Division, schellhas.hans@epamail.epa.gov. Under the authority of FAR 6.302-1, the U.S. Environmental Protection Agency intends to negotiate on a sole source basis with Bio-Rad Laboratories, for the acquisition of an imaging system. The Government's minimum requirements for the system are as follows: (1) Digital imaging system capable of radioisotopic imaging, laser-excited single and multi-color fluorescence imaging, and chemiluminescent imaging of electrophoretic gels and filters. System must be capable of detecting the following: P32, S35 and I125 isotopes; ethidium bromide, SYBR green and FITC fluorescence; and direct detection of chemiluminescence. At a minimum, system should include laser(s) that have the capability of the 450-488nm range and the 500-650nm range. Additional wavelength laser or the flexibility to change lasers is desirable. System must be capable of using storage phosphor screens of 35x43cm and 20x25cm format. System must include appropriate combination of photomultiplier tubes, internal/external lasers, and filters to allow maximum flexibility in excitation and detection. System should include all peripherals necessary for function including sample trays, scanner shelf, SCSI cable for connection to a computer, operating/analysis software for Windows98 or NT computer, SCSI/PCI card for computer connection, but does not include an external computer. U.L. listed; (2) Eraser for phosphorimaging screens, including at least one large phosphorimaging screen (35x43 cm) compatible with the imager (item 1) and 1 one Exposure Cassette (3x43cm). Unit should be capable of erasing phosphor-stored images and preparing screens for re-use; (3) Six Phosphorimaging Screens (20x25cm) compatible with items 1 and 2 above, reusable, which can detect beta particles, x-rays and gamma rays. Screens must include their own exposure cassette or fit into standard x-ray film cassettes; (4) Eraser of chemiluminescent-capable imaging screens, including one large chemiluminescent imaging screen (35x43cm) and all necessary accessories for exposure (e.g. exposure platforms, if necessary). Unit should be capable of erasing stored images and preparing screens for re-use. U.L. listed. (5) Four imaging screens for chemiluminescence (20x25cm) Imaging screens optimized for use with chemiluminescence. Screens should have wide dynamic response to chemiluminescent light and be reusable. Screens must be compatible with items 1 and 4 above). THIS IS NOT A REQUEST FOR PROPOSALS. This acquisition will be accomplished under the procedures of FAR Part 12, Acquisition of commercial items. Only sources capable of fully meeting the unique specifications/capabilities identified above, without exception, will be considered. A determination by the Government not to compete this acquisition is solely the discretion of the Government. Technical documentation must be submitted within 15 days of the publication of this notice to the office identified above. The points of contact are Hans Schellhas at (513-487-2055), by e-mail schellhas.hans@epamail.epa.gov), or to Marie Nichols at (513-487-2054), by e-mail marie.nichols@epamail.epa.gov). The subject facsimile number is (513) 487-2109. Posted 05/04/99 (W-SN327691). (0124)

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