Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone or filter-coated with anion exchange resin, or anion exchange resin-coated surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the PES or anion exchange resin-coated surface by immersing the PES or anion exchange resin-coated substrate in an iodine/pentane solution, then removing the substrate from the iodine/pentane solution and rinsing in pentane.

Abstract: A method of analyzing a fluid sample by XRF includes the steps of: depositing the fluid sample onto a substrate, exposing the sample and the substrate to an x-ray emission, generating a first analytical signal responsive to the x-ray emission, providing an operable first reference material having a first extended position above the substrate and in communication with the x-ray emission, periodically extending the first reference material to its first extended position, generating a first calibration signal, providing an operable second reference material having a first extended position below the substrate and in communication with the x-ray emission, and periodically extending the second reference material to its first extended position and generating at least one second calibration signal. The first and second calibration signals are compared with predetermined values. The first and second reference materials also have second retracted positions.

Abstract: A method of analyzing a fluid sample by XRF includes the steps of: depositing the fluid sample onto a substrate, exposing the sample and the substrate to an x-ray emission, generating a first analytical signal responsive to the x-ray emission, providing an operable first reference material having a first extended position above the substrate and in communication with the x-ray emission, periodically extending the first reference material to its first extended position, generating a first calibration signal, providing an operable second reference material having a first extended position below the substrate and in communication with the x-ray emission, and periodically extending the second reference material to its first extended position and generating at least one second calibration signal. The first and second calibration signals are compared with predetermined values. The first and second reference materials also have second retracted positions.

Abstract: An apparatus and method for generating an aerosol wherein the aerosol has a known concentration of metals or other chemical components, and wherein the aerosol concentration remains constant over a long period of time, rendering the apparatus and method suitable for application as a reference standard

Abstract: A method for removing mercury, and in particular elemental mercury, from a fluid stream by blending the fluid stream with a second stream comprising iodine. The blended stream is then passed through at least one filter, which is capable of removing oxidized forms of mercury from gas streams.

Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the polyethersulfone surface by immersing the polyethersulfone substrate in an iodine/ethanol solution, then removing the substrate from the iodine/ethanol solution and rinsing in ethanol.

Abstract: A method for removing mercury, and in particular elemental mercury, from a fluid stream by blending the fluid stream with a second stream comprising iodine. The blended stream is then passed through at least one filter, which is capable of removing oxidized forms of mercury from gas streams.

Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone or filter-coated with anion exchange resin, or anion exchange resin-coated surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the PES or anion exchange resin-coated surface by immersing the PES or anion exchange resin-coated substrate in an iodine/pentane solution, then removing the substrate from the iodine/pentane solution and rinsing in pentane.

Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone or filter-coated with anion exchange resin, or anion exchange resin-coated surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the PES or anion exchange resin-coated surface by immersing the PES or anion exchange resin-coated substrate in an iodine/pentane solution, then removing the substrate from the iodine/pentane solution and rinsing in pentane.

Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone or filter-coated with anion exchange resin, or anion exchange resin-coated surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the PES or anion exchange resin-coated surface by immersing the PES or anion exchange resin-coated substrate in an iodine/pentane solution, then removing the substrate from the iodine/pentane solution and rinsing in pentane.

Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the polyethersulfone surface by immersing the polyethersulfone substrate in an iodine/ethanol solution, then removing the substrate from the iodine/ethanol solution and rinsing in ethanol.