Increase GPC resolution and speed w i t h n e w MicroPak TSK H X L Columns Varian announces a new family of high-resolution GPC columns, manufactured by Toyo Soda, the leader in microparticulate gel technology. Featuring new 5-/xm spherical particles, these HXL Gels provide outstanding performance characteristics for GPC analysis. •
Unexcelled performance for GPC polymer characterization—Excellent column stability provides highly reproducible calibration for precision of molecular weight distribution calculations.
COMPARISON OF MICROPAK TSK HXL AND TSK H COLUMNS Sample: Epoxy Resin Flow: 1.0 ml/min. THF
Columns: MicroPak TSK 3000 HXL Total length: 60 cm
MicroPak TSK 3000 H 120 cm
® Extremely high resolving power for GPC separa tion of polymer additives and other small molecules—Column efficiency specification of 50,000 plates/meter provide twice the efficiency of conventional GPC columns. • Increased separation speed—Higher separation efficiency means equivalent resolving power can be obtained with half the column length of conventional GPC columns. Note the equivalency in separation efficiency with only half the length of the HXL columns as shown in the separation. Result: Faster Separations.
Varian MicroPak TSK HXL Columns are in stock and available now. MICROPAK TSK TYPE HXL COLUMNS FOR GPC Description MicroPak TSK 1000HXL MicroPak TSK 2000HXL MicroPak TSK 2500HXL MicroPak TSK 3000HXL MicroPak TSK 4000HXL MicroPak TSK 5000HXL MicroPak TSK 6000HXL MicroPak TSK 7000HXL MicroPak TSK GMHXL**.
Exclusion Limit (MW of PS) 1 χ 103 1 χ 104 2 χ 104 6 χ 104 4 χ 105 4 χ 10s 4 χ 107.* 4 χ 103.* 4 χ 108.*
Order Number 00-997149-74 00-997150-74 00-997151-74 00-997152-74 00-997153-74 00-997154-74 00-997155-74 00-997156-74 00-997157-74
* Estimated ** GMHXL = mixed bed packing. Columns are available packed in ODCB for use in high temperature GPC. To order call: 800-538-1735 or in California 800-6721405 or write: Varian Instrument Group, 220 Humboldt Court, Sunnyvale, CA 94089—ATTN: Order Desk. For further information circle the Reader Service Number.
Intelligent chromatography ... from Varian
varian For assistance contact: · Florham Park, NJ (201) 822-3700 · Park Ridge, IL (312) 825-7772 · Sugar Land.TX (713) 491-7330 In Europe: Steinhauserstrasse, CH-6300Zug, Switzerland. CIRCLE 328 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 56, NO. 2, FEBRUARY 1984 · 319 A
