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INDEX TO ADVERTISERS IN THIS ISSUE CIRCLE INQUIRY NO. 7 8 6 4 3 5 9 24 23 26 20 22 15 25 43 34-42 33 32

790 A ·

ADVERTISERS

PAGE NO.

* Airco Industrial Gases Hammond Farrell Inc. " Alltech Associates Chromad Alpha Resources Act I Advertising ' Alpkem Corporation Alpkem Advertising Co ' Altex Scientific, Inc Oliver Smith Advertising, Inc. American Optical McKinney Inc. · Antek Instruments Cooley & Shillinglaw, Inc. J.T. Baker Chemical Co Naimark & Barba, Inc. Balzers Corporation Business Development Services Barnes Engineering Co Jarman, Spitzer & Felix. Inc. ' Bausch & Lomb Wolft Associates, Inc. " Brinkmann Instruments, Inc Blatt Advertising. Inc. Brownlee Labs Inc James S. Schlesinger Burdick & Jackson Laboratories. Inc Studio 5 Advertising Carlo Erba Publicitas ' Chromatix, Inc David R. McClurg Control Laser Corporation Sphere Advertising Corning Glass Works Winterkorn. Hammond & Lillis. Inc. A N A L Y T I C A L CHEMISTRY, VOL

5 1 . NO. 7, JUNE

CIRCLE INQUIRY NO.

725A

47

762A

50-58

708A

48

788A

63

702A

64

678A

76 77

764A 75 679A 85 756A 96 728A 94 742A xxx OBC 89 737A 97, 98 702A 95 723A 667A

90 88

754A

92

677A

131

1979

ADVERTISERS Digital Equipment Corporation Creamer. Inc. · Dionex Fred Schott & Associates * Dohrmann Fred Schott & Associates ' Eastman Kodak Company Rumrill-Hoyt, Inc. * Eberbach Corporation Drury. Lacy, Inc. Farrand Optical Company, Inc " Finnigan Instruments Robert Pease & Company Adv. " Fisher Scientific Company Tech-Ad Associates " Gould Inc., Instruments Division Carr Liggett Advertising. Inc. * Hamilton Company Mealer & Emerson Adv. * Hellma International. Inc Miller Advertising Agency Inc. Hewlett-Packard Benn Associates · Hewlett-Packard Dancer Fitzgerald Sample, Inc. Hewlett-Packard Dorland Advertising Ltd. Hewlett-Packard Tallant/Yates Advertising, Inc Heyden & Son Inc ' HNU Systems, Inc Demon Advertising Agency " Houston Instruments Cooley & Shillinglaw, Inc. Instrumentation Laboratory Aries Advertising

PAGE NO 699A 749A 661A 703A 758A 752A 775A 792A 673A 747A, 748A 782A 713A-722A 753A 729A, 731A 680A-681A 757A 789A IFC 702A

INDEX TO ADVERTISERS IN THIS ISSUE CIRCLE INQUIRY NO. 91

ADVERTISERS

PAGE NO

Instruments SA, J-Y Optical Systems Div 744A Kathy Wyatt & Associates Adv. 122 · ISCO 762A Farneaux Associates Advertising 150 J & W Scientific 734A 123 * Jarrell-Ash Division, Fisher Scientific Co. . . 740A Tech-Ad Associates 124 · · JENAer Glas 764P Werbeagentur Frenz 129 Joint Committee on Powder Diffraction Standards 782A 126 Lab Data Control 733A Kelleher, Bamberger, Terry Advertising 168-169 * L. C. Company, Inc 780A M. J. Dreksler Associates xxx Leco Corporation 693A-696A LECOM 128 · · Leybold & Heraeus GmbH 764N Werbeagentur & Grafikstudio xxx 3M 783A D'Arcy. MacManus & Masius. Inc. 136 Mallinckrodt 709A Goldberg & Brumbaugh, Inc 152-154, 158-166· Matheson 670A, 671A Kenyon Hoag Associates 139, 140 · MC/B Manufacturing Chemists 726A-727A, Northlich. Stolley. Inc. 785A 135 * Metronics 782A Murphy Advertising. Inc. 132, 133 · Mettler 735A, 755A McKinney, Inc. 141, 142 · Micromeritics 686A-687A Adgraphics 147 * Mitsubishi Chemical Industries, Ltd 788A Global Advertising Co., Ltd. 146 · Nalge Labware 691A Hutchins/Y & R 148 Nicolet Instrument Corporation 675A Technical Communications 145 Norton 710A Northlich. Stolley of Akron. Inc; 149 Nuclear Data Inc 787A Andrews Associates 157 · Ohaus Scale Corporation 669A Michel-Cather. Inc. 156 " Orion Research 665A OBC Advertising 174 Pacific Scientific 701A Allen. Dorsey & Hatfield. Inc 170-171.173 . . . * Perkin-Elmer Corporation . . . 770A-771A, 772AMarquardt & Roche. Inc. Adv 773A, 781A 172 · Princeton Applied Research Corporation . . . 751A The Message Center 99-120 · · Pye Unicam Ltd 764B-764J 183 · Rheodyne 724A Bonfield Associates Adv. 182 * Riber Data Systems 685A Marken Communications 181 · Rudolph Research 738A Kathy Wyatt & Associates 191 Sadtler Research Laboratories, Inc 730A Stephen & Son 189 " Sargent-Welch Scientific Company 706A Polytech Advertising 193 · Schoeffel Instrument 789A Mar-Bet Associates 194 Shrader Analytical. Inc 765A 190 · Siemens 746A Hogan Gazzara Associates 187 · G. Frederick Smith Chemical Company . . . . 769A Andrew Show Advertising 192 " Spectra Physics 759A Paul Pease Advertising. Inc 188 SPEX Industries 747A Seymour Nussenbaum 203 Tachisto 708A Fisher Associates. Inc. 199 · Techne, Inc 732A Brunswick Advertising 198 * The Torsion Balance Company 689A Douglas Turner. Inc 200-202 · Tracor Analytical Instruments 739A Aim Advertising Agency

CIRCLE INQUIRY NO.

ADVERTISERS

PAGE NO

210

Ultra Carbon 760A Bradshaw Advertising 212 Ultra-Violet Products. Inc 728A Walnut Grove Industrial Advertising 211 U.S. Divers Co.-Lif-O-Gen Div 736A International Communications Inc 225 ' Valco 774A Cooley & Shillinglaw, Inc. 1-2, 17-18, · Varian 743A, 745A, 766A-767A, 222-223, 241-248 Moran, Lanig & Duncan Adv 768A, 769A, 779A 227 Varian M.A.T 704A Shepherd, Tibball & Galog 228 Verlag Chemie International Inc 780A 229 * ' Vitatron Dieren 764K-764L Vaz Dias Internationaal b.v. 236 " Waters Associates 784A Marketing Dimensions. Inc. 233 " Wescan Instruments. Inc 700A W.W. Love Advertising 234 ' Whatman, Inc 662A J S Lanza & Associates 232 ' John Wiley & Sons, Inc 763A 605 Advertising Group

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CENTCOM, LTD. Thomas Ν J Koerwer, President. James A Byrne, Vice President. Clay S Holden, Vice President; Benjamin W. Jones, Vice President; Robert L. Voepel, Vice President; 25 Sylvan Rd. South. Westport, Connecticut 06880 (Area Code 203) 226-7131 ADVERTISING SALES MANAGER James A. Byrne SALES REPRESENTATIVES Atlanta. GA . . Robert E. Kelchner, CENTCOM. Ltd. Telephone: 203-2267131 Boston. MA Don Davis, CENTCOM. LTD. Telephone 203-226-7131 Chicago . . . John W. McGuire, CENTCOM, LTD., 540 Frontage Rd„ Northiicld. III. 60093. 312-441-6383. Cleveland . . . Bruce E. Poorman, CENTCOM, LTD., 17 Church St., Berea, Ohio 44017, 216-234-1333. Houston . . . Robert LaPointe, CENTCOM, LTD., 415-781-3430 Denver. . . Clay S. Holden, CENTCOM LTD., 213-325-1903 Los Angeles 90045 Clay S. Holden, CENTCOM, LTD., Newton Pacific Center. 3142 Pacific Coast Highway. Suite 200, Torrance. CA 90505, 213-325-1903 New York 10017 . . Don Davis, Richard L. Going, CENTCOM LTD., 60 East 42nd St.. 212-972-9660 Philadelphia Richard L. Going, CENTCOM LTD., GSB Building. Suite 510 1 Belmont Avenue Bala Cynwyd, Pa. 19004. Telephone: 215-6679666 San Francisco, CA . . . Robert E. LaPointe, CENTCOM, Ltd., Suite 303, 211 Sutter Street, San Francisco, CA 94108. Telephone: 415-781-3430 Westport, CT . . . Don Davis, Robert E. Kelchner, CENTCOM, Ltd., 25 Sylvan Rd. South, Westport, Ct. 06880. Telephone: 203-226-7131. United Kingdom Reading. England . . . Malcolm Thiele, Technomedia Ltd., Wood Cottage. Shurlock Row. Reading RG10 OOE. Telephone: 073-581-302 Manchester. England . . . Jill E. Loney, Technomedia Ltd., 216 Longhurst Lane. Mellor. Stockport SK6 5PW. Telephone: 061-427-5660 Tokyo, Japan . . Haruo Moribayashi, International Media Representatives Ltd., 2-29 Toranomon, 1-Chome Minato-ku Tokyo 105 Japan, Telephone: 502-0656 Continental Europe . . . Andre Jamar, Rue Mallar 1, 4800 Verviers, Belgium, Telephone: (087) 22-53-85, Telex #49263 PRODUCTION DEPARTMENT Production Director Joseph P. Stenza

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. N A L Y T I C A L CHEMISTRY, VOL. 5 1 , NO. 7, JUNE

1979 ·

791 A