Particulate nitrogen concentration and isotopic composition
Natural isotopic composition of nitrogen in suspended particulate matter in the Bay of Bengal
... October 2002) monsoon seasons. The δ 15 N values of partic- ulate organic nitrogen (PON) in surface suspended matter of coastal and northern open BOB show mixing between con- tinental inputs and marine sources. ...
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Natural Isotopic Composition of Particulate Organic Nitrogen in the Eastern and Central Arabian Sea
... of isotopic composition of nitrogen ( 15 N) of particulate organic nitrogen (PON) at eighteen sampling locations in the north-eastern and central Arabian Sea during the waning phase of ...
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Particulate organic matter in Antarctic summer sea ice: concentration and stable isotopic composition
... and isotopic data from sea ice collected over a wide area of the Weddell Sea, Antarctica, during the austral summer/early autumn illustrate the range of environmental con- ditions under which ice algae ...chemical ...
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Nitrogen Isotopic Composition and Elemental concentration of Tree-rings May Help Map the Extent of Historic Fire Events
... population. Nitrogen isotope and elemental compositions of tree-rings may provide such a ...of nitrogen (Bukata and Kyser 2005). Elemental and isotopic markers in non-fire-scarred trees may record ...
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Isotopic composition of carbon and nitrogen in ureilitic fragments of the Almahata Sitta meteorite
... Bulk nitrogen contents ...of nitrogen occurred in all ...more nitrogen-rich and isotopically ...an isotopic study of individual ureilite ...
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Determination of Isotopic Composition and Concentration of Uranium and Boron by Thermal Ionization Mass Spectrometric Isotopic Dilution Technique
... For isotopic analysis of boron which is performed with thermionic mass spectrometer, precise value maintenance of filament current is essential to produce a stable intense peak and to avoid or minimize the ...
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Isotopic composition of dissolved inorganic nitrogen in high mountain lakes: variation with altitude in the Pyrenees
... on concentration, chemical and isotopic tendencies, we suggest that patterns arise from the distinct relative contributions of two types of water flow paths to the lakes: one from snow- pack melting, with ...
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Nickel isotopic composition of the mantle
... Ni concentration of 2000 µg/g, which means this reservoir contains >99% of the silicate Earth’s Ni inventory (McDonough and Sun, 1995; Palme and O‘ Neill, ...
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Isotopic composition of nitrate and particulate organic matter in a pristine dam reservoir of western India: implications for biogeochemical processes
... ammonium. Isotopic mea- surement of precipitation and upstream river samples during one seasonal sampling provided some insight into sources of nitrogen, but the observed inter-annual variability could not ...
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Nitrate Isotopic Composition in Rainfall and Fine Particulate Matter: Back Trajectory, Meteorology, and Source - Receptor Relationship Analysis
... This study used δ 15 N values from 31 rainfall samples from 2004 collected on the roof of Jordan Hall at North Carolina State University (35.78°N, 78.68°W) at a height of 23 meters above ground level. The samples were ...
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Nutrient distribution and nitrogen and oxygen isotopic composition of nitrate in water masses of the subtropical southern Indian Ocean
... along a transect from the IOSG to the southern equatorial Indian Ocean. The main goal of this study is to investigate the relatively unknown hydrology and the unexplored distri- bution of nutrients and stable isotopes of ...
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Nitrogen isotopic composition of plants and soil in an arid mountainous terrain: south slope versus north slope
... Correspondence: Guoan Wang ([email protected]) Received: 20 July 2017 – Discussion started: 4 September 2017 Revised: 23 November 2017 – Accepted: 4 December 2017 – Published: 17 January 2018 Abstract. Nitrogen ...
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Spatial variations in snowpack chemistry and isotopic composition of NO3- along a nitrogen deposition gradient in West Greenland
... Geng et al. (2014) argue that the high δ( 15 N) in ice core records from the Greenland ice sheet relative to direct measurements 20 of atmospheric sources may indicate a major role for post-depositional enrichment ...
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Nitrogen isotopic fractionation and nitrogen use efficiency in beef and dairy cattle
... and nitrogen (N) use efficiency in ...diet composition cannot be ...N isotopic fractionation, which is related to the underlying N metabolism and cycling, is introduced as an alternative method for ...
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Seasonal study of stable carbon and nitrogen isotopic composition in fine aerosols at a Central European rural background station
... and Saxena, M.: Stable carbon and nitrogen isotopic composition of bulk aerosols over India 611. and northern Indian Ocean, Atmos[r] ...
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Study of the isotopic composition of mercury: experimental approach
... HCl concentration, the MDF and MIF values are all ...HCl concentration, all isotopic signatures obtained in propylation increase with HCl concentration, which is not observed in the ethylation ...
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Isotopic constraints on the pre-industrial oceanic nitrogen budget
... particulate organic carbon that sinks into the portion of the grid box covered by a shallower continental shelf. In the model, ∼ 30 % of BD occurs within this shelf parameteriza- tion. The remaining ...
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A nitrogen budget for the Strait of Georgia, British Columbia, with emphasis on particulate nitrogen and dissolved inorganic nitrogen
... total particulate nitrogen (PN) concentration (%) for surface sediment; (b) surface flux of PN (50 µmol cm 2 yr −1 interval); (c) burial flux of PN; and (d) remineralization rate of ...
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Determining ground-level composition and concentration of particulate matter across regional areas using the Himawari-8 satellite
... Chapter 9: Synthesis 190 methods that use continuous infrared wavelengths. Air quality incidents at night and pre-dawn inversion conditions can generate high concentrations, and it is vital that these elevated ...
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PECCI Code (Python Estimation for Carbon Concentration and Isotopes) for Calculating the Concentration and Stable Carbon Isotopic Composition of Dissolved Inorganic Carbon (DIC) in Precipitation for northwestern Arkansas
... using isotopic tracers are commonly and effectively used to quantify the proportions of rain rapidly delivered to springs along fractures and conduits during storm ...and isotopic compositions of carbon ...
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