For Polymer Branching Information... Think Low Angle Laser Light Scattering
Chromatix® Low Angle Laser Light Scattering (LALLS) detectors and software give unique polymer branching data when coupled with Gel Permeation Chromatography (GPC). RESULTS: NBS Polymer Standard SRM-1476 is known to contain branched material. The LALLS detector clearly indicates a high molecular weight fraction that is below the detection limit of the Differential Refractive Index (DRI) detector. CONCLUSIONS: The CMX-100 LALLS detector is inherently sensitive to high M w polymers and can yield unique results complementary to conventional GPC concentration detectors such as a differential refractive index unit (DRI). Only with LALLS can the polymer analyst realize the full potential of GPC for branched materials.
LALLS SOLVES PROBLEMS: It can easily detect the presence of that small concentration of high M w polymer that would otherwise escape detection by using only a concentration detector. These unseen small concentrations of very high fifiw branched polymers can dramatically alter the performance and processing characteristics of the material in many different applications. The production or end-use suitability of your polymer may be assured when LALLS data is used for routine quality control. FAST AND EASY TO USE: The CMX-100 system is designed with unique features that save time and money: • No GPC calibrations needed • Absolute M w for branched and linear polymers • No lengthy and difficult post run calculations required LDC/Milton Roy proprietary software dramatically extends the data generated by the CMX-100. It provides complete data formatting and many special calculation routines. All are available through easy-to-use-and-understand "menu"-driven prompting, specifically designed for the polymer chemist. AFFORDABLE: The CMX-100 is designed to provide routine LALLS information to the polymer analyst at a surprisingly affordable price. The CMX-100 interfaces easily and quickly to your present GPC system and can operate at temperatures up to 150°C. It can be used with equal ease for aqueous and nonaqueous polymers. COMPLETE SERVICE AND SUPPORT: Field service is now available through the extensive LDC/Milton Roy network. We maintain a complete applications laboratory to support your needs in GPC/LALLS. Call or write for additional information and the name of the nearest LDC/Milton Roy Sales/Service Representative.
LDC/Milton Roy
Chromatix® Product Manager Toll Free 800-538-1595 or (408) 736-0300 (U.S.A. only)
U S . H E A D Q U A R T E R S , P.O. Box 10235. Riviera Beach, F L 33404 Toll-free: 800-327-6182, In Florida: (30S) 844-6241 International Telex: 4 4 1 0 9 8 , Domestic Telex: S13479 S U N N Y V A L E O P E R A T I O N , 660 Oekmeed Parkway, Sunnyvale, CA 9 4 0 8 6 Toll-free: 800-638 1595, In California: (408) 736-0300 U N I T E D K I N G D O M , LDC U K , M i l t o n Roy House, 52 High Street, Stone, Staffordshire ST15 B A R England Phone: 785-81-3542 Telex: 36623 WEST G E R M A N Y , M i l t o n Roy {Deutschland! G M B H Jahnitrasse 22-24 6 4 6 7 Hasselroth 2 , West Germany Phone: 6055-2031 13366) Telex: 4 1 8 4 3 5 7 J A P A N . M i l t o n R o y K.K., Takanawa Dai-ichi Building 2 1 - 4 1 , Takanawa 2-Chome, M i n a t o - K u , T o k y o 1 0 8 , Japan Phone: (03) 473-3181 Telex: 242-4296
CIRCLE 133 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 55, NO. 7, JUNE 1983 · 749 A
