Recording Titrator. Illustrated sixpage bulletin describes the Model D instrument for use with all types of potentiometric titration, with either glass or metal electrode svstems. E. H. Sar gent & Co. (Bull.D). L-10 General Catalog. New 1440-page is sue of the company's general catalog lists the entire line of stock available. The book is cross-referenced, and has both a special short index and a com prehensive general index. Includes sci entific instruments, apparatus, and chemicals. E. II. Sargent & Co. (Cat. 109). L-11
ARL offers "COMPLETE" ECONOMY in spectrochemical analysis with the ΝΕΝΑ/ Model 2 9 0 0 0 Quantometer*
Scientific Apparatus. Eight-page is sue of periodical catalog describes the Beekman DK-2A far UV spectropho tometer, Buehler metallurgical equip ment, and other items. Scientific Prod ucts (S/P Review, Aug. 1961). L-12 Chromatographic Desalter. Single illustrated page describes the Torbal B.T.L. unit for desalting solutions for chromatographic analysis in five to 10 minutes. The Torsion Balance Co. L-13
In-Line Refractometer. Illustrated six-page booklet describes the instru ment, as well as giving design and appli cation data. Waters Associates. L-14 Aldehydes. New 45-page booklet gives comprehensive data on properties and uses of acetaldehyde, paraldehyde, propionaldehyde, butyraldehyde, isobutyraldehydc, acetaldol, acrolein, acro lein dimer, methacrolcin, crotonaldehyde, glyoxal, pyruvic aldehyde, ghit.araldehyde, and 2-hydroxyadipaldehyde. Union Carbide Chemicals Co. L-15 Organic Acids and Anhydrides. New
48-page booklet gives comprehensive data on properties and uses of acetic, propionic, butyric, 2-ethylbutyric, -'ethylhcxoic, acrylic, sorbic, valeric, and isodecanoic acids; ;ind on acetic, pro pionic, and butyric anhydrides. Union Carbide Chemicals Co. L-16 NMR and EPR Catalog. Illustrated 12-page catalog briefly describes tech nique of NMR and EPR spectroscopy and covers the company's entire line of NMR and EPR systems and com ponents. Varian Associates. L-17 UV-Visible Analyzer. Operation and applications of the company's Series 6S0 instrument are discussed. Specifi cations are also listed. Analytical Svs tems Co. (Bull. 110). ' L-18 Flame Ionization Detector. Bulletin describes operation and discusses ap plications of the company's Series 400 unit, as well as listing specifications. Analytical Systems Co. (Bull. Jf00).
ARL Production Control Quantometer for less than $22,000.
ARL's "COMPLETE" 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 programs for under $22,000 with t h e 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 are shock mounted. Polyurethane insulation protects against rapid temperature changes. Automatic compensator maintains g r a t i n g alignment. These and other features maintain i n s t r u m e n t precision to consistently less than ± 0 . 2 % standard deviation. Analytical precision is equal to or better than t h a t of standard chemical methods. E C O N O M Y O F D E S I G N — ARL's Production Control Quantom eter laboratory provides maximum flexibility for changes in analytical programs. 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 available 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 a t 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 are easily possible with the PCQ laboratory. Contact your nearest representative or write for full information on ARL analytical equipment.
TRADEMARK
APPLIED RESEARCH LABORATORIES, INC. QUALITY OF B A U S C H & L O M B
INCORPORATED
P. O. BOX 1710, 6 L E N D A L E 5, C A L I F O R N I A MAIN OFFICES 3 7 1 7 P A R K P L A C E , G L E N D A L E 8, C A L I F O R N I A · CHaqman 5 - 5 5 2 4 B R A N C H O F F I C E S N E W YORK PITTSBURGH CLEVELAND DETROIT CHICAGO HOUSTON LOS ANGELES LAUSANNE. Switzerland LONDON, England PARIS France
L-19 Circle No. 21 on Readers' Service Card VOL. 33, NO. 11, OCTOBER 1961
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