U.S. Geological Survey, Procurement and Contracts Section, Building 25, Box 25046, MS 204A, Denver Federal Center, Denver, CO 80225

66 -- UPGRADE OF VARIAN XL300 300 MHZ NUCLEAR MAGNETIC RESONANCE SPECTROMETER SOL 6-6033 POC Donnarene M. Lewis, Contracting Officer, (303) 236-5900 x321 Purchase to include installation of new console and new computer workstation to upgrade existing Varian XL300 300 MHz Nuclear Magnetic Resonance (NMR) narrow bore Magnet and Varian XL 300 Generation III 5mm and 10mm broadband probes. Upgrades shall be able to operate existing Varian XL300 300MHz narrow bore NMR magnet and existing Varian XL300 Generation III 5mm and 10mm broadband probes (15N-31P) in the execution of all modern liquid phase one and two dimensional multinuclear NMR experiments with variable temperature capability, including COSY, HET2DJ, HETCOR, INEPT, DEPTGL, APT, and ACOUSTIC. The System Radio Frequency (RF) Console shall include Broadband transmitter, 30-122 MHz, 282-300 MHz, Heteronuclear and homonuclear spin decoupler, 2H internal Autolock, Industry standard eternet host and acquisition interface, Industry standard VME bus, Multiplexed pulse controller with hardware time, 100 kHz spectral width, 512-Kbyte table (256/128 Kwords in 16/32 bit), Programmable filters (200 Hz to 51.2 kHz), 0.1 Hz offset resolution in low band, 0.2 Hz in high band, indirect detection module, 13 Channel Shim Power Supply. System shall accommodate WALTZ decoupling modulator and filters for indirect detection. Computer workstation shall be capable of storing, processing and plotting existing NMR data acquired on Varian Version 6.1C VXR software. RF console and computer system shall be able to perform pulsed field gradient indirect detection experiments (15N-31P) and spin lock experiment such as ROESY. As a minimum the computer workstation shall consist of 150-Mbyte 1/4 inch tape drive, 3 1/2 inch 1.44-Mbyte External Floppy Disk Drive, 644-Mbyte External CD-ROM Drive, 16 Mbytes memory, 535- Mbyte internal hard disk. Vendor shall provide a LaserJet printer/plotter 8 1/2 x 11 inch, 600 dpi laser printer. Provide one year warranty on new computer workstation, operating software, and new console. Shall be able to provide full service maintenance contract on console, computer system, probes, and existing magnet upon expiration of warranty of upgrade equipment. Vendor shall demonstrate their ability to provide service on Varian 300 MHz magnet and generation III broadband probes. Shall be able to provide indirect detection probe that can be operated by the NMR system. Upgrades shall be compatible with existing equipment and upgrades shall not jeopardize existing service contract on the existing equipment. Delivery is F.O.B. destination within 30 days after contract award to the U.S. Geological Survey, Water Resources Division, National Research Program, Arvada, CO 80002. Prototype equipment shall not be accepted. Solicitation will close on or about 3/22/96. All responsible sources may submit an offer which will be considered. (0028)

Loren Data Corp. http://www.ld.com (SYN# 0247 19960129\66-0002.SOL)