LABORATORY SERVICE CENTER
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LABORATORY SERVICE CENTER Acetylenedicarboxylic Acid, Potassium Salt · Allyl-iso-Valerate Benzylisothiourea HCI · tert-Butyl Chloride · Cysteamine HCI 1,2-Diaminocyclohexanetetraacetic Acid · 3,5-Dihydroxybenzoic Acid 3,4-Dimethoxyphenylacetic Acid · p-Dimethylaminobenzalrhodanine Dimethylchloroacetal · Diphenylthiocarbazone · Ethyl-p-Anisate Fast Blue Β Salt · Fructose · Galacturonic Acid · Gallein · Guaiacol Litmus · Magnesium Propionate · Malonic Acid · Methyl Butyrate 3-Methylglutaric Anhydride · 4-Methylpentanoic Acid · Succinimide Write for our Products List of over 3,000 chemicals Tel: 516-273-0900 · TOLL FREE: 800-645-5566 Telefax: 516-273-0858 · Telex: 497-4275 EASTERN CHEMICAL A Division of UNITED-GUARDIAN, INC. P.O. Box 2500 DEPT. AC SMITHT0WN, N.Y. 11787 Laboratory Service Center (Equipment, Materials, Services, Instruments for Leasing), Maximum space — 4 inches per advertisement. Column width, 2-3/16"; two column width, 4-9/16". Artwork accepted. No combi- nation 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" — $148; 12" — $146; 24" — $143; 36" — $138; 48" — $134. CALL OR WRITE JANE GATENBY ANALYTICAL CHEMISTRY 500 Post Road East P.O. Box 231 Westport, CT 06880 203-226-7131 FAX: 203-454-9939 HELP WANTED ADS ROP display at ROP rates. Rate based on number of insertions within contract year. Cannot be combined for frequency. CALL OR WRITE JANE GATENBY ANALYTICAL CHEMISTRY 500 Post Road East P.O. Box 231 Westport, CT 06880 203-226-7131 FAX: 203-454-9939 FREE DATA, FAST To quickly amass data on all of the prod- ucts you need, consult the Lab Data Ser- vice Section on our Analytical Chemistry reader reply card insert. .... because it's the most useful. Published since 1955, the annual LabGuide leads all others in advertising pages and in reader usage (22,000 references daily). It's the true one-stop buying source where most manufacturers say with their ads, "Here we are. Compare our products with those of our competitors." That's why in more than six out of ten purchases by the 277,000 users it serves, the LabGuide s consulted before the purchase is made. 1300 A · ANALYTICAL CHEMISTRY, VOL. 60, NO. 22, NOVEMBER 15, 1988 MOST USED Unit 1-Ti 6-Ti 12-Ti 1" (25 mm) $170 $150 $140 24-Ti 48-Ti 72-Ti $130 $125 $120
Transcript of LABORATORY SERVICE CENTER
LABORATORY SERVICE CENTER
Acetylenedicarboxylic Acid, Potassium Salt · Allyl-iso-Valerate Benzylisothiourea HCI · tert-Butyl Chloride · Cysteamine HCI
1,2-Diaminocyclohexanetetraacetic Acid · 3,5-Dihydroxybenzoic Acid 3,4-Dimethoxyphenylacetic Acid · p-Dimethylaminobenzalrhodanine
Dimethylchloroacetal · Diphenylthiocarbazone · Ethyl-p-Anisate Fast Blue Β Salt · Fructose · Galacturonic Acid · Gallein · Guaiacol
Litmus · Magnesium Propionate · Malonic Acid · Methyl Butyrate 3-Methylglutaric Anhydride · 4-Methylpentanoic Acid · Succinimide
Write for our Products List of over 3,000 chemicals Tel: 516-273-0900 · TOLL FREE: 800-645-5566 Telefax: 516-273-0858 · Telex: 497-4275
EASTERN CHEMICAL A Division of UNITED-GUARDIAN, INC.
P.O. Box 2500 DEPT. AC
SMITHT0WN, N.Y. 11787
Laboratory Service Center (Equipment, Materials, Services, Instruments for Leasing), Maximum space — 4 inches per advertisement. Column width, 2 -3 /16 " ; two column width, 4 -9 /16 " . Artwork accepted. 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 " — $148; 12 " — $146; 2 4 " — $143; 3 6 " — $138; 4 8 " — $134.
CALL OR WRITE JANE GATENBY
ANALYTICAL CHEMISTRY 500 Post Road East
P.O. Box 231 Westport, CT 06880
203-226-7131 FAX: 203-454-9939
HELP WANTED ADS ROP display at ROP rates. Rate based on number of insertions within contract year. Cannot be combined for frequency.
CALL OR WRITE JANE GATENBY
ANALYTICAL CHEMISTRY 500 Post Road East
P.O. Box 231 Westport, CT 06880
203-226-7131 FAX: 203-454-9939
F R E E 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.
....because it's the most
useful.
Published since 1955, the annual LabGuide leads all others in advertising pages and in reader usage (22,000 references daily). It's the true one-stop buying source where most manufacturers say with their ads, "Here we are. Compare our products with those of our competitors." That's why in more than six out of ten purchases by the 277,000 users it serves, the LabGuide s consulted before the purchase is made.
1300 A · ANALYTICAL CHEMISTRY, VOL. 60, NO. 22, NOVEMBER 15, 1988
MOST USED
Unit 1-Ti 6-Ti 12-Ti
1 " (25 mm) $170 $150 $140
24-Ti 48-Ti 72-Ti
$130 $125 $120
