LABORATORY
SERVICE CENTER
Aluminon · m-Aminophenol · L & DL-Aspartic acids · Azure Β · Bromoacetal Chloralose · 2-Chloro-4-nitrobenzoic acid · 3,3'-Diaminobenzidine tetraHCI Diethyl malonate · Dihydroxyacetone · Dimedone · Dimethylglyoxime & Na 3,5-Dinitrobenzoic acid · Esculin · EGTA · Histamine diphosphate INT · Iodine titration indicator · Malonic acid · Methylene iodide Methyl-iso-propyl ketone · Methyl-p-toluene sulfonate · Orcinol Pimelic acid · Polyacrylonitrile · Sodium diethyldithiocarbamate Succinimide · Sulfosalicyclic acid · Triphenylphosphine · Xylitol Write for our Products List of over 3,000 Tel: 516-273-0900 · TOLL FREE: 800-645-5566
SPECIALTY
PRODUCTS,
FREE DATA, FAST To quickly amass data on all of the products you need, consult the Lab Data Service section on our Analytical Chemistry reader reply card insert.
chemicals
Telefax: 516-273-0858 · Telex: 497-4275
EASTERN CHEMICAL ADMIRAL
LABORATORY SERVICE CENTER
INC.
P.O. Box 2500 DEPT. AC SMITHT0WN. NY. 11787
HELP WANTED ADS ROP display at ROP rates. Rate based on number of insertions within contract year. Cannot be combined for frequency. Unit
Γ (25 mm)
1-Ti
6-Ti
$210
$190
12-Ti
24-Ti
(Equipment, Materials, Services, In struments for Leasing), Maximum space — 4 inches per advertise ment. Column width, 2-3/16"; two column width, 4-9/16". Artwork ac cepted. No combination of directory rates with ROP advertising. Rates based on number of inches used within 12 months from first date of first insertion. Per inch: 1 " — $185; 12" — $180; 24" — $175; 38" — $170; 48" — $165. CALL OR WRITE JANE GATENBY
ANALYTICAL CHEMISTRY 1 5 9 9 Post R o a d East
$180 $170 ANALYTICAL CHEMISTRY 1599 Post Road East P.O. Box 231 Westport, CT 06881 203-256-8211/FAX: 203-256-8175
INDUSTRIAL& ENGINEERING CHEMISTRY RESEACH
Editor: Donald R. Paul University of Texas, Austin Published by the American Chemical Society
Quality information that gives you the leading edge Covering the broad, interdisciplinary field of chemical engineering and industrial chemistry, Industrial & Engineering Chemistry Research delivers peer-reviewed, monthly reports with a focus on the fundamental and theoretical aspects of chemical engineering, process design and development, and product R&D. A typical issue contains original studies in the areas of kinetics and catalysis, materials and interfaces, process engineering and design, separations, and other topics, with an emphasis on new areas of science and technology.
902 A • ANALYTICAL CHEMISTRY, VOL. 65, NO. 20, OCTOBER 15, 1993
P.O. Box 2 3 1 W e s t p o r t , C T 06881 203-256-8211 FAX: 2 0 3 - 2 5 6 - 8 1 7 5
Don't miss a single issue, Subscribe Today! Call Toll Free (U.S. only): 1 -800-333-9511 Outside the U.S.: 614-447-3776 FAX: 614-447-3671 Or Write: American Chemical Society Member and Subscriber Services P.O. Box 3337 Columbus, OH 43210 Volume 32 (1993) Printed
U.S.
Canada & Mexico
Europe*
All Other Countries*
ACS Members One Year Two Years Nonmembers
$ 64 $115 $567
$ 84 $155 $587
$108 $203 $611
$120 $227 $623
* Air Service Included. Member subscription rates are for personal use only. Subscriptions are based on a calendar year. Foreign payment must be made in U.S. currency by international money order, UNESCO coupons, or U.S. bank draft, or order through your subscription agency. For nonmember rates in Japan, contact Maruzen Co., Ltd. This publication is available on microfilm, microfiche, and the full text is available online on STN International.
