Abstract: Compositions suitable for use as signal generation components of an immunoassay, and methods for their use. According to one aspect of the invention, the composition includes a carrier having a coating of an aminodextran and a metal chelate incorporated therein. The metal chelate is present in the amount of at least 0.065 ?Mole per gram of carrier, and the aminodextran coating density averaging at least about 45 ?g per milligram of carrier. In another aspect of the invention, carrier is dyed with a complex having the formula: M(L1)x(L2)y, wherein M is a metal selected from the group consisting of europium, terbium, dysprosium, samarium, osmium and ruthenium; L1 is a ligand selected from the group consisting of DPP, TOPO, TPPO; L2 comprises a ligand having the formula wherein R is one or more substituents, each substituent comprising an electron donating group; n=2-10; x=1-2; and y=2-4.

Abstract: Compositions suitable for use as signal generation components of an immunoassay, and methods for their use. According to one aspect of the invention, the composition includes a carrier having a coating of an aminodextran and a metal chelate incorporated therein. The metal chelate is present in the amount of at least 0.065 ?M per milligram of carrier, and the aminodextran coating density averaging at least about 45 ?g per milligram of carrier. In another aspect of the invention, carrier is dyed with a complex having the formula: M(L1)x(L2)y, wherein M is a metal selected from the group consisting of europium, terbium, dysprosium, samarium, osmium and ruthenium; L1 is a ligand selected from the group consisting of DPP, TOPO, TPPO; L2 comprises a ligand having the formula wherein R is one or more substituents, each substituent comprising an electron donating group; n=2-10; x=1-2; and y=2-4.

Abstract: A bio-mass suspension burner for use with furnaces or boilers includes a delivery system for injecting particulate solid fuel into a combustor. A primary air stream mixes with and conducts the fuel into the combustor. Secondary air is introduced at the point of ignition, while tertiary air is introduced tangentially to maintain a cyclonic vortex. The burning, gasified fuel exits the combustor through a nozzle where quartiary air is introduced to burn the gas. Proper flame stability, gasification and ash fusion control is achieved by regulation of the various air streams.