Bio-Rad's new universal beam accessory creates multiple external beams for any current model of the company's FT-IR spectrometers. According to the manufacturer, the low-cost accessory enhances the versatility of its spectrometers and can be added at any time. Bio-Rad's external sample compartment (ESC), micro/IR, GC/IR, or TGA/IR accessories can be attached to the exit beam ports.
Bio-Rad, Digilab Division, Cambridge, Mass.
Bovine serum albumin (BSA) is often used as a carrier protein or stabilizing agent in research and diagnostic applications. The demand for high-quality reagents has grown as the sensitivity of these applications has increased. PanVera's new Ultrapure BSA reportedly has the lowest levels of contaminating RNase and DNase of the commercially available BSAs. This purity level has been achieved by exhaustive purification of native BSA rather than by chemical modification methods, such as acetylation. In addition to nuclease activity, PanVera Ultrapure BSA is tested for protease activity, alkaline phosphatase...
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