Environmental Protection Agency, OPPTS Contract Support Branch, (3803-F), 401 M Street, S.W., Washington, D.C. 20460

66 -- HIGH PERFORMANCE LIQUID CHROMATOGRAPHY/MASS SPECTROMETER Sol W501157-B1. Due 062695. Contact Linda Jordan, (202) 260-9690. The Environmental Protection Agency (EPA) wishes to buy one state-of-the-art high performance liquid chromatography (HPLC)/mass spectrometer (MS) with data system and all pertinent manuals and schematics in accordance with the requirements listed below. The system shall be equipped with a high performance single-stage quadrupole mass spectrometer specifically designed to do HPLC/MS analyses with atmospheric pressure ionization (API) and atmospheric pressure chemical ionization (APCI). The system shall be equipped with an ionspray/electrospray source and APCI source. The system shall operate in both positive and negative ionization modes and shall be able to accept liquid flow rates from the HPLC that range from microliters to milliliters per minute. The MS shall be equipped with a quadrupole mass analyzer capable of a 10 to at least 2500 u mass range and a resolution better than unit resolution throughout the entire mass range. The detector shall be a continuous dynode electron multiplier capable of positive/negative ion detection and high sensitivity/low noise. Sensitivity must be demonstrated in the 100-200 picogram range with a 10:1 signal:noise using an accepted single analyte industry STD. The vacuum system shall be equipped with high capacity turbo pumps with automatic vacuum system protection in the event of power failures. The data system shall consist of a computer with a large color monitor that communicates with all functional components of the entire system and automatically controls all sample introduction systems, scanning and detector options, vacuum and calibration gas systems and all data acquisition and data treatment programs. The data system shall have the ability to simultaneously acquire data, process data and still allow the user access to the instrument control commands from the workstation. The system shall have the capacity to store the system's operating and data treatment program as well as a minimum of 100 hours of acquired data. The HPLC shall have the ability for close loop injection and infusion of sample and can be automatically controlled via the computer. The system shall have a quaternary pump system, on line degasser, seal wash and extended pH range. EPA requires one year warranty maintenance and one extensive training session for a minimum of 2 people. The solicitation is anticipated to be released on 6/26/95. (153)

Loren Data Corp. http://www.ld.com (SYN# 0376 19950606\66-0004.SOL)