LC problem solvers from Du Pont
Now Zorbax® 3-micron columns make rapid analyses trouble-free ZORBAX Golden Series 3-micron columns solve the major problems that have plagued rapid analysis separa tions. With minimal back pressure and without special instrumentation, Golden Series columns can separate complex mixtures two to three times faster than conventional columns. Samples that take 5 to 6 minutes with a standard 15 cm column can readily be separated in 2 to 3 minutes with a Golden Series column—with no loss of resolution. Total engineering The Golden Series column is unique, from the ZORBAX packing to a new column config uration. Particle size is controlled within a narrow distribution range: more than 90% of the particles are within 0.5 microns of the average. The 3-micron parti cle, made by a patented process, is spherical and mechanically strong; column back-pressure is minimized, and column life is lengthened. Every Golden Series column has a guaranteed mini mum of 10,000 theoretical plates. Optimum column design The Golden Series column is designed so that its internal configuration (6.2mm ID χ 80mm) has a volume equivalent to a standard 4.6mm ID χ 150mm column. No new detector, injec tor, or re-engineering of your LC system is needed. When ZORBAX 3-micron and standard
columns are operated at the same linear velocity, resolution and efficiency remain equivalent. However, resolution per uniyime is doubled for the 3-micron colum jvbecause analysis time is Other advantages Golden Series columns in crease lab productivity. Methods developed on standard ZORBAX columns can be transferred di rectly to Golden Series columns, because all ZORBAX columns,
including the Golden Series, have consistent selectivity; and these 3-micron columns operate effec tively from ambient to 60°C. Three types of packings Three types of ZORBAX packings are available: ODS, C8 and S1L, meeting more than 80% of chromatographic needs. All columns in the Du Pont line are shipped with a Column Perfor mance Report and guaranteed for 60 days. Only Du Pont makes ZORBAX columns and packings. Call toll-free Call us anytime on our 24-hour toll-free number: 800-345-8600 ext. 502, or write: Du Pont Company, Room X40154, Wilmington, DE 19898.
COLUMN COMPARISON Sample: Water Soluble Vitamins 1. Ascorbic Acid 3. Pyridoxine 2. Niacinamide 4. Riboflavin 4.6mm x 25cm Column Time of Analysis 9.5 min.
Liquid Chromatography Columns CIRCLE 48 ON READER SERVICE CARD
Golden Series Column Time of Analysis 3.0 min.
DUPONT
