Literature
A c o m p l e t e line of o v e r 2 4 0 items of Nalgene thermoplastic l a b w a r e is pic tured, s p e c i f i e d , and priced in a 4 8 - p c a t a l o g . M a r k s o n S c i e n c e , Inc. 448
Catalogs A 3 6 - p s h o r t - f o r m c a t a l o g f e a t u r e s all t y p e s of variable a r e a flow m e t e r s f r o m g e n e r a l - p u r p o s e , low f l o w m o d e l s to f l o w m e t e r s for h i g h - p r e s s u r e purge s e r v i c e or solids-bearing liquids. B r o o k s Instrument Division, E m e r s o n Electric Co. 447
A 2 0 - p c a t a l o g and data m a n u a l f e a t u r e s a c o m p l e t e line of gas c h r o m a tography products including OV-liquid phases, prepared packings, customm a d e O V - p a c k e d c o l u m n s , silylation r e a g e n t s , a n d refined o r g a n o silanes. Ohio Valley Specialty C h e m i c a l , Inc.
449
ing over 1000 a d v a n c e d - d e s i g n p r o d ucts. Lab-Line Instruments, Inc. 450
A 28-p catalog describes the complete line of balances and scales for r e s e a r c h , e d u c a t i o n a l , a n d industrial a p p l i c a t i o n s . Mettler Instrument C o r p . 451
A 2 4 - p c a t a l o g d e s c r i b e s the B e c k m a n N e w D i m e n s i o n s audio/visual programs available on a wide variety of t o p i c s . Price list and ordering information in cluded. B e c k m a n N e w D i m e n s i o n s 4 5 2
Laboratory instruments and apparatus a r e f e a t u r e d in a 4 0 0 - p c a t a l o g d e s c r i b A n e w c a t a l o g d e s c r i b e s over 2 0 0 m o d els of t h e O m n i S c r i b e 10-in. strip chart recorders. T h e s e r e c o r d e r s a r e a v a i l a b l e in o n e - or t w o - p e n versions start ing at $ 3 9 5 . Houston Instrument 453
A 16-p c a t a l o g describes liquid crystal products available including e l e c t r o o p t i c purity n e m a t i c e s t e r s , s m e c t i c liquid c r y s t a l s , positive anisotropy m a t e r i a l s , n e m a t i c m i x t u r e s , and n e m a t i c ester i n t e r m e d i a t e s . E a s t m a n Kodak C o . 454
Catalog 8 7 5 , 100 p, lists spectroscopic supplies and equipment c o v e r i n g all p h a s e s of s p e c t r o s c o p y including NMR, EPR, IR, U V , M S , and GC. W i l m a d Glass Co. 455 Imagine w h a t y o u could do with ο $20,000 savings when you automote your Hewlett-Packard or Finnigan GC'MS. You could hire ο full-time technician or purchase floating point hardware, or simply pass the savings on to your organization. Regardless of which GC/MS in strument you plan to c u t o m a t e Magnetic. Time-of-Flight or Quadrupole—you can count on System Industries to satisfy your data system criteria at the lowes* possible cost. How do w e do it? Simply by building a versatile d o t a system which can be easily a d a p t e d to any GC/MS instrument. The modu lar flexibility of our hardware design, when combined with our long experience in developing minicomputer disk storage sys tems and related software allows us to price our data system 'or below the fixed "black box ' configurations. When you evaluate the perform ance of our data system y c u II discover ο capability unavailable elsewhere in the industry. Standard features include Samples/AMU for
System :UROPE:S.I. C ••
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mass defect, and IFSS (integration os a function of signal strength)— plus powerful software for control ling plotters, CRT displays, archival memory files ond multidisk storage units. Through directmemory access, large mainframe computers m a y be remotely timeshared for processing GC/MS data. If your application requires it. our data system provides the option of adding a library of 10.000 mass spectra. Moreover, interchange able interface modules give you the choice of automating either Magnetic or Quadrupole instru ments within the some system. You o w e it to yourself to join the increasing number of scientists w h o are taking control of their data system purchase by involving System Industries. To get detailed specifications and the full story about h o w our data system is being applied in the fields of crime detection, pollution analysis, pharmaceuticols and university research call us collect (408) 732-1650 or write: System Industries. 505 Del Rey Avenue. Sunnyvale, CA 9 4 0 6 6 .
Six " S " Series conductivity meters and associated accessories are s u m m a rized in a 2 1 - p c a t a l o g . The instruments f e a t u r e similar conductivity cell design, low voltage integrated a u t o m a t i c t e m p e r a t u r e c o n t r o l , a n d wall, b e n c h - t o p , or flush mounting e n c l o s u r e s . B e c k m a n Instruments, Inc. 456
A 3 7 - p c a t a l o g of laboratory products includes e l e c t r o p h o r e s i s e q u i p m e n t , T L C a c c e s s o r i e s , a n d a variety of labo ratory aids. G e l m a n Instrument C o . 4 5 7
A 2 4 - p product directory and s h o r t - f o r m c a t a l o g briefly describes a wide variety of test and measurement instruments. John Fluke M f g . C o . , Inc. 458
A c o m p r e h e n s i v e 4 0 - p c a t a l o g illus t r a t e s and d e s c r i b e s scientific instru mentation for use in c h e m i c a l , m e d i c a l , e d u c a t i o n a l , and r e s e a r c h laboratories. PolyScience Corp. 459
Industries
AN EQUAL OPPORTUNITY EMPLOYER ' . •• Ltd.. 2 Kingswoy Woking. Surrey. Englond GU2MNU ••••i62) 70725/Tetex: 851-859124
. . . innovators of GC/MS data systems since 1969 CIRCLE 192 ON READER SERVICE CARD 66 A · ANALYTICAL CHEMISTRY, VOL. 48, NO. 1, JANUARY 1976
For m o r e i n f o r m a t i o n o n l i s t e d i t e m s , c i r c l e the a p p r o p r i a t e n u m b e r s o n o n e of our R e a d e r s ' S e r v i c e C a r d s
