INSTRUMENTATION
ARL offers "COMPLETE" ECONOMY in spectrochemical analysis with the NEW Model 29000 Quantometer
ARL Production Control Quantometer for less than $22,000.
ARL'S " C O M P L E T E " E C O N O M Y IS M A N Y T H I N G S E C O N O M Y O F I N V E S T M E N T —Typical analytical p r o g r a m s for under $22,000 with the new Production Control Quantometer — includ ing Model 29000 Spectrometer with Model 28000 Series Modular Source Unit and 24100 Recording Console. E C O N O M Y W I T H Q U A L I T Y — S t a b i l i t y is assured by welded steel construction and protective cabinet. All critical components a r e shock mounted. Polyurethane insulation protects against rapid temperature changes. Automatic compensator m a i n t a i n s g r a t i n g alignment. These and other features m a i n t a i n i n s t r u m e n t precision to consistently less t h a n ' 0 . 2 % s t a n d a r d deviation. Analytical precision is equal to or b e t t e r t h a n t h a t of s t a n d a r d chemical.methods. E C O N O M Y O F D E S I G N — A R L ' s Production Control Quantom eter laboratory provides maximum flexibility for changes in analytical p r o g r a m s . Model 29000 Spectrometer can accommodate 48 phototubes, mak ing possible 48 simultaneous analytical determinations. A choice of one of t h e t h r e e a v a i l a b l e h i g h - d i s p e r s i o n q u a r t z g r a t i n g s (960, 1200, 1440 l i n e s / m m ) provides optimum dispersion for any analytical requirement. The recording console is readily adaptable for use with ARL x-ray fluores cence analyzers at a substantial savings in new equipment. E C O N O M Y O F S P E E D — 1 0 0 0 or more accurate chemical deter minations per day a r e easily possible with t h e PCQ laboratory. Contact your nearest representative or write for full information on ARL analytical equipment.
APPLIED RESEARCH LABORATORIES, INC. s.^stciLirl· o< B A U S C H
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ANALYTICAL CHEMISTRY
engineered for production. This is a development, which will be watched with interest by all microanalysis. B o i l e r W a t e r . Some time ago we described the extraordinary means which are employed to assure the p u r i t y of boiler teed water in modern power plants, mid had referred to t h e work of W . A. Crandall in this connection. I t was therefore rewarding to hear his discussion on the opening day on a pilot plant for analytical instrumentation. These determinations are all automatic and must possess a high degree of pre cision and reliability. T h e importance of reliability cannot be overestimated because "down-time" on boilers or t u r bines can b e disastrously expensive. T h e research analyst is likely to dismiss this sort of boiler chemistry as some thing crude a n d n o t in t h e same class as his careful researches. T h e simple fact is t h a t few analysts have ever seen or used distilled water as pure as t h a t required in huge quantities in a modern high pressure boiler. Impurities such as oxygen, silica, etc., must be known and k e p t in t h e p a r t p e r billion range, and a n y mistakes or even short term fluctuations can be ruinous. G a s C h r o m a t o g r a p h y . Progress in gas c h r o m a t o g r a p h y can now b e fol lowed only b y t h e experts because there a n ; so m a n y aspects of t h e tech nique. T h e several concurrent sessions emphasized this. Despite widespread applications in all fields, there is still intensive research on improved detec tors, better columns, t h e recording a n d integration of peaks, d a t a collation a n d ret riev.nl. I t ' s all a very long way from weigh ing barium sulfate precipitates or titrating hydrochloric acid. We begin to feel sorry for the analytical student of tomorrow in contemplation of all he will have to learn. Exhibits. T h e exhibit of instru ments was meager, b u t choice. This was not a national meeting, where t h e displays are vast, b u t devoted primarily to t h e limited purpose of the sym posium. In future columns we hope to describe; some of t h e newer instru ments which were exhibited. T h e ollic.ers of t h e Analysis I n s t r u mentation Division of t h e I .S.A. a r e to he congratulated for their efforts in this seventh symposium, particularly M . D . Weiss of Union Carbide Olefins, 1!. D . lianes of Leeds & N o r t h r u p , T . J . Kehoe of Beckman I n s t r u m e n t s , a n d R. V. Wall of Monsanto. Among t h e many competent experts who con tributed to t h e program, it was pleasant to hear again from such progressive analysts well known to readers of A N A LYTICAL C I I K M I S T K Y as W a y n e
Karle Serfass and Roger Bates.
Meinke,
