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Showing 1 to 20 of 229 for “"trace metals"”.

  1. The marine geochemistry of trace metals

    … to provide a basis for oceanographic models for trace metals. Copper, nickel, and cadmium can be determined in a 100 ml seawater sample using cobalt pyrrolidine dithioacarbamate chelate coprecipitation and graphite atomizer atomic absorption spectrometry. Concentration ranges likely to be …

    woods-hole Repository record for The marine geochemistry of trace metals (opens in a new tab)

  2. Chemiluminescent Multicomponent Determination of Trace Metals

    Made available in DSpace on 2014-12-13T20:10:45Z (GMT). No. of bitstreams: 1 8004283.pdf: 5992892 bytes, checksum: 7a90f117834a0521101a12195f5dd8fb (MD5) Previous issue date: 1979

    uiuc Repository record for Chemiluminescent Multicomponent Determination of Trace Metals (opens in a new tab)

  3. The marine geochemistry of trace metals.

    Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.

    mit Repository record for The marine geochemistry of trace metals. (opens in a new tab)

  4. The biogeochemistry of marine particulate trace metals

    … both the distributions of marine particulate trace metals and the underlying processes—inputs, scavenging, vertical and horizontal transport, and biotic uptake—in which marine particles participate. I first present the results of an intercalibration exercise among several US laboratories. We …

    woods-hole Repository record for The biogeochemistry of marine particulate trace metals (opens in a new tab)

  5. Transport of trace metals in nearshore sediments

    … focus of this thesis is on rates of transport of metals both across the sediment/water interface and within the sediment column of nearshore sediments. The early diagenesis of several first-row transition metals exhibiting a variety of behaviors in the ocean -- Mn, Fe, Co, Ni, and Cu -- has been …

    woods-hole Repository record for Transport of trace metals in nearshore sediments (opens in a new tab)

  6. Interactions of Trace Metals With Biological Compounds

    Made available in DSpace on 2014-12-13T20:10:20Z (GMT). No. of bitstreams: 1 7804180.pdf: 6506678 bytes, checksum: 783c8af097d862818d50199bde3bd564 (MD5) Previous issue date: 1977

    uiuc Repository record for Interactions of Trace Metals With Biological Compounds (opens in a new tab)

  7. The biogeochemistry of marine particulate trace metals

    … both the distributions of marine particulate trace metals and the underlying processes-inputs, scavenging, vertical and horizontal transport, and biotic uptake-in which marine particles participate. I first present the results of an intercalibration exercise among several US laboratories that …

    mit Repository record for The biogeochemistry of marine particulate trace metals (opens in a new tab)

  8. Transport of trace metals in nearshore sediments

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1985.

    mit Repository record for Transport of trace metals in nearshore sediments (opens in a new tab)

  9. THE DETERMINATION OF TRACE METALS BY CAPILLARY ELECTROPHORESIS

    … post-capillary reactor for the determination of trace metals by UV-Vis absorption after formation of intensely absorbing coloured complexes. The main principle of operation was based on the infusion of the colorimetric reagent into a small 50µm gap between the separation capillary and the …

    plymouth Repository record for THE DETERMINATION OF TRACE METALS BY CAPILLARY ELECTROPHORESIS (opens in a new tab)

  10. The determination of trace metals in mixed matrices

    … flotation techniques for pre-concentration of trace metal ions discussed. Direct-slurry, direct current plasma (DCP) spectrometry, has been studied for possible determination of Cu, Cr and Ag chemical impregnants on activated, granular, carbons used in chemical defence protection systems. …

    cent-lancashire Repository record for The determination of trace metals in mixed matrices (opens in a new tab)

  11. Trace metals and the ecology of marine cyanobacteria

    … of these cyanobacteria can be influenced by trace metals such as iron and copper. Iron is an essential trace metal that is present in the high nutrient, low chlorophyll waters of the equatorial Pacific in extremely low concentrations. When these waters were enriched with iron, Prochlorococcus …

    mit Repository record for Trace metals and the ecology of marine cyanobacteria (opens in a new tab)

  12. Phytochelatin induction by trace metals in marine microalgae

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1994.

    mit Repository record for Phytochelatin induction by trace metals in marine microalgae (opens in a new tab)

  13. IN SITU MEASUREMENT OF TRACE METALS IN COASTAL WATERS

    … situ and laboratory techniques for monitoring of trace metals and master variables in the environment. Chapter 1 presents a general overview of trace metals, their sources, sinks and roles in estuaries and near coastal zones, their general characteristics and the importance of their behaviour in …

    plymouth Repository record for IN SITU MEASUREMENT OF TRACE METALS IN COASTAL WATERS (opens in a new tab)

  14. Techniques for monitoring human exposure to airborne trace metals

    … for monitoring human exposure to airborne trace elements in urban atmospheres using trace metal analysis of human hair.

    london-metro Repository record for Techniques for monitoring human exposure to airborne trace metals (opens in a new tab)

  15. Determination of dissolved trace metals in the western North Pacific

    … resin for preconcentration/separation of these metals from seawater matrix, followed by ICP-MS or GFAAS detection. This method was used to investigate trace metals in the western North Pacific, a region for which little trace metal data are available. Concentrations of these elements are found …

    ubc Repository record for Determination of dissolved trace metals in the western North Pacific (opens in a new tab)

  16. DETERMINATION OF TRACE METALS BY lON-CHROMATOGRAPHY WITH CHEMILUMINESCENCE DETECTION

    … that the detection step for the determination of trace metals by liquid-chromatographic systems is the weakest area of the analytical procedure. Various post-column reagent systems, for trace metal analysis, based on the highly sensitive luminol-peroxide chemiluminescence (CL) reaction have been …

    plymouth Repository record for DETERMINATION OF TRACE METALS BY lON-CHROMATOGRAPHY WITH CHEMILUMINESCENCE DETECTION (opens in a new tab)

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