LABORATORY
SERVICE CENTER
Acetylthiourea · 4-Aminoantipyrine · m-Aminophenol · Anisoin · Benzamide 4-tert-Butylcatechol · tert-Butyl Chloride · 4-Dimethylaminobenzaldehyde 3,3-Dimethylglutaric Acid · Esculin · Ethyl Pyruvate · Glycolic Acid Hydroxylamine HCI & Sulfate · α-Ketoglutaric Acid · Methylbutyrate Methylformamide · p-Nitrobenzaldehyde · Phenylurea · Phloroglucinol Potassium & Sodium Rhodizonates · Potassium Tetrathionate · Reinecke Salt Rhamnose · Silver & Sodium Diethyldithiocarbamates · Sodium Succinate Sodium Tetraphenylboron · Sulfosalicylic Acid · Taurine · Tryptamine Write for our Products List of over 3000
L a b w a r e • A p p a r a t u s · Stock FREE catalog describes std. labware, custom fabricated apparatus, and stock (rods, tubes, plates, discs, ingots}. Q U A R T Z SCIENTIFIC, INC. 819 East St. · Fairport Harbor, OH 44077 216/354-2186-Telex 98-5489
LIQUID CHROMATOGRAPHY
chemicals
TWX: 510-227-6230
Tel: 516-273-0900 · TOLL FREE: 800-645-5566
EASTERN CHEMICAL
P.O. Box 2500
A Division of U N I T E D - G U A R D I A N , INC.
SWITHTOWN, Ν. Υ. 11787
WE OFFER: · Complete Polymer Detormulation • Good vs Bad Comparison • Gel Permeation Chromatography MWD Μη. Mw Mz • Additive PacKage Analysis All worh done is treated as strictly confidential For more information please write or call us at
617-376-8883 ASSOCIATES. INC. 397 Village Street Mlllls, Ma*«achutette 02054
L a b o r a t o r y S e r v i c e Center (Equipment, Materials, Services, Instruments tor Leasing), M a x i m u m s p a c e — 4 inches per advertisement. C o l u m n width, 2 - 3 / 1 6 " ; t w o - c o l u m n width, 4 - 9 / 1 6 " . Artwork a c c e p t e d . No combination of d i r e c t o r y r a t e s w i t h R O P a d v e r t i s i n g . R a t e s b a s e d o n n u m b e r o f i n c h e s u s e d w i t h i n 1 2 m o n t h s f r o m f i r s t d a t e o f f i r s t i n s e r t i o n . Per i n c h : 1 " — $125; 1 2 " — $123; 2 4 " — $120; 3 6 " — $115; 48" — $112. CALL
OR
WRITE
JANE
SPECIALISTS
POLYMER PROBLEMS?
USE LABORATORY
GATENBY
ANALYTICAL CHEMISTRY
SERVICE
25 Sylvan Road South P.O. Box 231 Westport, Ct. 06881
CENTER
203-226-7131 INDEX TO ADVERTISERS IN THIS CIRCLE INQUIRY NO.
ISSUE
CIRCLE INQUIRY NO.
ADVERTISERS
ADVERTISERS
4
' A i r c o Industrial Gases Hammond Farrell, Inc.
824A
33
' C r a w f o r d Fitting Company Falls Advertising
752A
β
" A i r Products & Chemicals, Inc. . Lewis, Gilman & Kynett, Inc.
793A
43
Dialog Information Service McCann-Erikson, Inc.
778A
7
' A l l t e c h Associates SMS Marketing Services
825A
44
' D i o n e x Corporation LaPointe, Schott & Smith
8
' A m e r i c a n Burdick & J a c k s o n Nordstrom/Cox Marketing
818A
42
Duralab Equipment Company .... Michael W. Schoen Company
843A
1-2
The Anspec Company JJ&K Advertising
776A
50
Edax International STG Marketing
839A
9
A n t e k Instruments
753A
49
EG&G/PARC The Message Center
784A
5
' A p p l i e d Research Laboratories, Inc ICE Communications
782A
53
EM S c i e n c e K.I. Lipton, Inc.
814A
3
* At ago Bussan Company, Ltd Echo Japan Corp.
786A
52
ENI Power Systems, Inc Faller, Klenk & Quinlan, Inc.
826A
17
Bausch & L o m b / A P D Blair Advertising
811A
47-48
Extranuclear Laboratories Communications Ink, Inc.
791A
19
B e c k m a n Instruments LaPointe, Schott & Smith
751A
57
Fachinformationszentrum Krais Werbeagentur
783A
Bioanalyticat Systems
842A
15
..
Kissinger Advertising Assoc.
18
Bomem Inc
18
' B r u k e r Instruments
749A 799A
Cambridge Isotope Laboratories
34
Corning Glass W o r k s / S c i e n c e Products Winterkorn Lillis, Inc.Claisse, Inc. Corporation Scientifique
35
844 A
·
ANALYTICAL
Flnnigan MAT ' F i s h e r Scientific Company Tech-Ad Associates
59
FTS Systems
772A ..
739A 795A
DJ Moore Advertising, Inc.
Techmarketing, Inc. 32
65-66 58
768A
67
General lonex Corporation Kelley Advertising
...
IFC
63-64
' G i l s o n Medical Electronics . . LaPointe, Schott & Smith
761A
763A ..
CHEMISTRY, V O L . 5 7 , NO. 7, JUNE
810A
1985