Outstanding GC/MS performance from Europe's proven leader IOPGP OF PFP oeR cr DopfniNE Ftc ΝΟΡΜΕΓΤΗΝΕΓΉΙΙ *:
Λ h/pical example of the picogram level detection for the PFP dériva^ tives of two important biogenic compounds, dopamine ana normetanephrine by Selected Ion Monitoring using RIBERMAG's advanced design ionization source. Chosen ions were m le 428 for dopamine and m le 458 for normetanephrine: up to 8 different ions may be selected simultaneously when the Riber Data System is being used.
The highly versatile RIBERMAG GC/MS R10-10 instruments offer such features as dual ionization switching from electron impact to chemical ionization mass spectrometry and back as well as two completely isolated diffusion pumping systems, 1000 L/sec for the ion source and 150 L/sec for the quadrupole filter. A unique feature of the R10-10 is the automatic protection provided by a modern pneumatic system which prevents an ou spill on the quadrupole probe in the event of power or vacuum failure. Because of its large filter, the RIBERMAG R10-10 demonstrates no mass discrimination even in the upper limit at mass 1000. It is by far the most stable quadrupole ever built. No separator is used, even when GC carrier gas flow rates of 30 ml/min are used with 2mm 10-packed columns. The interface consistantly produces higher sensitivity with predictable repetition and insures perfect chromatographic resolution even in the most difficult cases. If your work calls for consistantly high GC/MS performance, contact us today for more information on Europe's leading mass spectrometers.
RIBERMAG
ISA
49 Quai d u Halage 92505 Rueil-Malmaison, France (1) 977.92.05 Telex 692419 CIRCLE 181 ON READER SERVICE CARD 1094 A · ANALYTICAL CHEMISTRY. VOL. 50, NO. 12, OCTOBER
1978
News Program: Philip D. Lafleur, National Bureau of Standards Secretary Chairlady: Marion Skeadas, GTE Sylvania Chairlady-Elect: Anne Donnell Treasurer and Budget Chairman: Monte Dawkins, Baird Corp. Chairman-Elect: Tom Kirkendall, Comsat Labs Exhibit Manager Edward B. Ruffing, Scherago Associates, Inc. Arrangements Chairman: James Cornwell, Kennecott Copper Corp. Chairman-Elect: Syd Fleming, E. I. du Pont de Nemours & Co. Continuing Education Chairman: James Swartz, Foxboro Co. Cultural and Social Events Chairlady: Genevieve Bonini, JarrellAsh Div., Fisher Scientific Assistant: Marion Skeadas, GTE Sylvania Employment Bureau Chairlady: Alice Kaprielian, U.S. Army FEL Exhibits Chairman: Stan Smith, Instrumentation Lab Housing Chairman: Mike Saati, Kennecott Copper Corp. Chairman-Elect: Ed Murt, Union Carbide Message Center Chairlady: Alice Morrison, Diano Corp. Chairman-Elect: Vince Cordova, National Medical Services Printing and Publicity Cochairmen: Vince Meyer, GTE Sylvania; David Walsh, Baird Corp. Chairman-Elect: James Devlin, E. I. du Pont de Nemours & Co. Registration Cochairmen: Fred Valenti, AMMRC; Fred Howell Chairman-Elect: Ted Rains, National Bureau of Standards Student Awards Chairlady: Evelyn Sarnoff, U.S. Food and Drug Administration Chairman-Elect: Gene Nixon, University of Pennsylvania
