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

66 -- MASS CHROMATOGRAPHIC ANALYZER SOL CI98-ORD22 POC Mike Hennessey, 513-487-2032 WEB: Office of Acquisition Management -- Contracts Management Division -- Cincinnati, http://www.epa.gov/oam/cinn_cmd. E-MAIL: hennessey, hennessey.mike@epamail.epa.gov. WRITTEN REQUESTS FOR THE SOLICITATION WILL NOT BE ACCEPTED.The Environmental Protection Agency has a requirement for a mass chromatographic analyzer that will be used in conjunction with an existing HPLC pump (Waters 600E) and autosampler (Waters 717plus). The EPA needs to detect, positively identify, and quantify pesticides (and their metabolites) in tissues from pesticide-treated animals. Currently, we have the capability to detect and quantify the toxicants in question, but we do not have the means for positive identification. The analyzer to be purchased will provide that capability. In addition to the compatibility requirement, analyzers must meet the following performance requirements: 1. Single, gold coated ceramic quadrupole mass spectrometer with mass range of 30-3000 m/z, which will connect with existing HPLC pump (Waters 600E) and autosampler (Waters 717 plus). 2. Ion transfer to mass spectrometer shall occur without heat (which degrades labile samples), consisting of a high pressure RF-only ion guide. 3. System shall have a differentially pumped vacuum system with two 50 1/sec turbo molecular pumps. Shall have fail-safe system protection with automatic shutdown and restart after power failures. Turbo pumps shall not require a water chiller even if room temperature exceeds 80 F. 4. Analyzer shall have a continuous dynode electron multiplier (CEM) detector which operates in the pulse counting mode and is capable of positive/negative ion detection. The CEM polarity shall be switchable between alternate scans. 5. Ion path optics, interface electronics, and gas supplies shall be fully computer controlled. 6. System shall include analyzer-computer interface that will communicate with embedded processors to provide complete control of the vacuum system, API sources, mass analyzer scan conditions, parameter settings and data acquisition selections. 7. System shall include data acquisition and processing software. 8. Analyzer shall be capable of CID/MS and alternating CID/MS and MS experiments. 9. Resolution (M/ M) of quadrupole shall be better than M (FWHH 0.8 u) throughout the mass range of 30 to 3000 Da. 10. System shall include an atmospheric pressure chemical ionization (APCI) source which has nebulizer assisted, temperature controlled probe inlet with both probe and discharge needle articulation. 11. APCI source shall have flow rate compatibility of 0.2 to 2.0 ml/min, full gradient capability, and a solvent compatibility of 100% aqueous to 100% organic. It shall also have two viewing ports, with an off-axis sprayer configuration and a discharge current of +/- 15 micro amperes. 12. System shall include an atmospheric pressure ionization (API) source that accepts flow rate from 50 L to 1000 L/min. 13. System shall include a dual channel analog-to-digital converter to collect data from other detectors. All responsible sources may submit a quote which shall be considered. TELEPHONE REQUESTS WILL NOT BE ACCEPTED. The fax number is 513-487-2107. The E-mail address is hennessey.mike@epamail.epa.gov (0022)

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