Abstract: A composition and method are disclosed to reduce the effects that endogenous alkaline phosphatase found in some human bodily fluid samples have on solid phase immunoassay systems. The composition comprises a detergent, inhibitors to alkaline phosphatase, and a buffer and may contain a substrate to alkaline phosphatase.

Abstract: A water softening device is provided with a waste storage tank for receiving waste liquid, such as hard water used to draw out brine from a brine storage tank, as well as the used brine itself during a regeneration cycle. The tank outlet communicates with a sprinkler system, and when the sprinkler system is on, an injector valve sucks waste liquid from the waste tank to mix it in with the sprinkler system water and thereby further dilute the liquid. A method of processing the waste water accordingly includes collecting this waste liquid and preferably mixing it in with the sprinkler fluid. The brine waste and brine supply tanks in one embodiment are preferably formed as one unit with two separate compartments. The inlet pipe to the brine waste compartment has an overflow safety valve which senses, through a float mechanism, when the tank is substantially full. The valve has a normally closed port connected to a leach line or the like.

Abstract: This invention relates to certain N,N'-bis(nipecotyl)piperazines and their use as platelet aggregation inhibtory agents.

Abstract: This invention relates to tetrahydroquinoline derivatives and their use for the inhibition of blood platelet aggregation.

Abstract: This invention relates to certain heterocyclic compounds which are useful as platelet inhibitory agents and intermediates for these compounds.

Abstract: Various bis-nitrogen containing compounds exhibiting blood platelet aggregation inhibiting activity. One such compound being [substituted-N, N.sup.1 -Bis-(nipecotyl)]-piperazine.