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S&S REPORTS — Products and technology for the laboratory Today, there's precious little to lose. In today's laboratory, sample volumes are often measured in microliters. And yet their small size is often inversely proportional to their value. In terms of time to prepare, scarcity of source material or difficulty to replace, these miniscule amounts can represent substantial sums. S&S has developed high efficiency purification technol- ogy specifically directed toward protecting the small volume/high value sample. That's why many researchers trust S&S filtration products Consider, for example, the S&S Microfilter system. It handles volumes of 20 μΐ to 2 ml, accommodates the full range of S&S membrane filters and speeds filtration with brief, low rpm centrifugation. Best of all, recovery efficiencies are typically better than 95%. The same careful design makes S&S FP030 disc filters, Elutip col- umns and new 2 ml collodion membranes particularly well suited for purifying, concen- trating or sterilizing small samples without jeopardizing the sample volume. When you're processing valuable fractions of less than 5 ml, don't take big risks with small samples; contact S&S for the right product. After all, you've got precious little to lose. Schleicher & Schuell Innovators in Separation Science Schleicher & Schuell, Inc., 543 Washington Street, Keene, N.H. 03431. Phone: (603) 352-3810 Schleicher & Schull GmbH, D-3354 Dassel, West Germany · Schleicher & Schull AG, CH-8714 Feldbach ZH, Switzerland Schleicher & Schull Nederland BY 's-Hertogenbosch, The Netherlands CIRCLE 197 ON READER SERVICE CARD
