new products
LC detector. The epsilon e5 electrochemical LC detector features 4 digital channels in radialand crossflow arrays and pulsed amperometric detection with up to 16 definable steps. The e5 has optically isolated circuitry and 20bit resolution, along with combined digital and analog filtering. The system has built-in computer control and data analysis, with provision for up to two external detectors. Bioanalytical Systems
INSTRUMENTATION Sample prep. The PL-SP 260 GPC sample preparation system, designed for the high-temperature polymer characterization market, features easy preparation and filtration of hot polymer solutions for chromatographic and other analyses. It handles a wide range of polymer samples with dissolution temperatures ranging from ambient to 260 °C. The PL-SP 260 is an option for the PL-SP 220 integrated GPC system and Waters’ 2000, 150C, and 150 CV systems. Polymer Laboratories Protein analysis. The 301 Triple Detector Array (TDA) for characterizing proteins, protein aggregates, and other biopolymers runs on-line in a continu-
ous-flow mode to provide protein molecular weight, size (hydrodynamic radii down to 1 nm), and conformation in a single experiment under standard chromatographic conditions. The method also provides intrinsic viscosity, so the investigator can recognize and record protein denaturation. The TDA is a nondestructive detector. Viscotek
Fast X-ray detector. The X’Celerator is an extremely fast X-ray detector, allowing diffractograms to be recorded nearly 100 times faster than do detectors with traditional Bragg–Brentano powder diffraction geometry. It has PreFIX mounting and can easily be exchanged for other optical components and detectors without laborious realignment procedures. A first impression of an unknown sample can be obtained in
