Briefs Mass Discrimination Based on Longitudinal Ion Motion in a Double-Cell Fourier Transform Ion Cyclotron Resonance Mass Spectrometer 2097 Carlo Giancaspro*, Istituto di Chimica Nucleare del C.N.R., Area della Ricerca di Roma, C.P. 10, 00016 Monterotondo Stazione, Rome, Italy, and Francis R. Verdun, LSMC1— Université de Metz, B.P. 794, 57012 Metz Cedex, France Anal. Chem., 58 (1986)
WE'VE SOLD OVER 500 DX SERIES
Aids for Analytical Chemists
MASS SPECTROMETERS
WORLDWIDE HERE'S WHY
Reverse Pulse Voltammetry at a Solid Electrode 2099 Zenon J. Karpinski, Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland Anal. Chem., 58 (1986)
Carbon Paste Coated Wire Selective Electrode for Nitrate Ion 2101 Yong-Keun Lee*, Jung-Tae Park, and Chang-Kue Kim, Department of Chemistry, College of Science, Yonsei University, Seoul 120, Korea, and Kyu-Ja Whang, Department of Manufacturing Pharmacy, College of Pharmacy, Sookmyung Women's University, Seoul 140, Korea Anal. Chem., 58 (1986) O u r DX Series Mass S p e c t r o m e t e r s offer t h e p e r f o r m a n c e , reliability, a n d e a s e of u s e of a " s e c t o r s y s t e m " i n s t r u m e n t , b u t at " q u a d r u p o l e " p r i c e s . ' PERFORMANCE. D e s i g n e d w i t h s u c h t e c h n o logically s u p e r i o r f e a t u r e s as M a t s u d a i o n o p t i c s , virtual imaging, d o u b l e focusing, a n d t h e l a m i n a t e d m a g n e t , o u r D X 3 0 3 offers h i g h sensitivity ( e.g. SO p g m e t h y l s t é a r a t e ), all i o n i z i n g m e t h o d s ( El, CI, IX il, FAB. FD ), a m a s s r a n g e of I t o 4 . 5 0 0 , a resolution u n o b t a i n a b l e w i t h q u a d r u p o l e i n s t r u m e n t s ( R :-- 2 5 , 0 0 0 at 10% valley ), a n d a scan s p e e d of 0.1 s e c d e c a d e . RELIABILITY. At a level b a c k e d by o v e r 5 0 0 sect o r s y s t e m installations. EASE ( )F IJSE. F e a t u r e s s u c h as t h e full) a u t o m a t e d v a c u u m s y s t e m , single k e y s e l e c t i o n of r u n p a r a m e t e r s , a n d m e n u - d r i v e n s o f t w a r e w i t h "soft k e y " c o n t r o l p u t t h e p o w e r of t h e D X 3 0 3 i n t o t h e h a n d s of a w i d e variety of users. For m o r e i n f o r m a t i o n , call PEABODY, M A ( 6 1 7 ) 5 3 5 - 5 9 0 0 o r PALO ALTO. C A ( 4 1 5 ) 4 9 3 - 2 6 0 0 . J E O L I .S.A Inc. 11 D e a r b o r n Road. Peabodv, MA 0 1 9 6 0 .
TheJMS-DX303 Mass S p e c t r o m e t e r .
JEOL ServingA d v e n c e dTechnology CIRCLE 113 ON READER SERVICE CARD 964 A · ANALYTICAL CHEMISTRY, VOL. 58, NO. 9, AUGUST 1986
Laser Two-Photon Excited Fluorescence Detector for Microbore Liquid Chromatography 2103 William D. Pfeffer and Edward S. Yeung*, Ames Laboratory— USDOE and Department of Chemistry, Iowa State University, Ames, Iowa 50011 Anal. Chem., 58 (1986)
Interferometric/Schlieren Detection of the Structure of Species Sampled in a Spark Discharge 2106 Wu-hwa Hsu and David M. Coleman*, Department of Chemistry, Wayne State University, Detroit, Mich. 48202 Anal. Chem., 58 (1986)
Rapid and Automatic Determination of Nitrogen Using Flash Combustion of Large Samples 2109 Wolfgang J. Kirsten* and Kjell H. Jansson, The National Swedish Laboratory for Agricultural Chemistry, S-750 07 Uppsala, Sweden Anal. Chem., 58 (1986)
