Abstract: A mass analyzer system uses a simultaneous mode electron multiplier detector which outputs both a pulse count and an analog signal. Depending on the ion flux intensity, the signals define a pulse count only region in which the pulse count only signal is valid, an overlap region in which both the pulse count and analog signals are valid, an analog signal only region in which only the analog signal is valid, and a neither analog nor pulse region in which neither signal is valid. The system produces a separate flag for each region. When a mass spectrum is scanned, for each dwell the pulse count and analog data are recorded together with their associated flag and are placed in memory. The signals, with the flags, can then be used to produce a mass spectrum using the pulse count only signal, the analog only signal, or both.

Abstract: A composition for use in surgical operations to prevent adhesions between tissue surfaces, comprising an aqueous solution containing dextran in an amount of 7 to 20% and hyaluronic acid in an amount of 0.5 to 6%, the dextran having a weight average molecular weight within the range of 30,000 to 75,000 and the hyaluronic acid having a weight average molecular weight within the range 500,000 to 6,000,000.

Abstract: A composition for the prevention of adhesions between body tissues after a surgical operation, containing dextran and hyaluronic acid. The composition further claims the use of said components for the preparation of such a composition as well as its use as an agent for the prevention of adhesions.