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Dissolved organic carbon analysis

Dissolved organic carbon and biodegradable dissolved organic carbon determination in river water of the Strug Basin

Dissolved organic carbon and biodegradable dissolved organic carbon determination in river water of the Strug Basin

... BDOC analysis was verified with a test, which involved adding increasing doses of an organic carbon standard to water ...biodegradable organic carbon) were added to the samples to ...

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The marine biogeochemistry of dissolved organic carbon and dissolved organic nutrients in the Atlantic Ocean

The marine biogeochemistry of dissolved organic carbon and dissolved organic nutrients in the Atlantic Ocean

... 4. CONCLUSIONS The combined HTC TOC-NCD system provided excellent linearity and precision. The results of deep oceanic water CRMs for the system showed a good agreement with the certified values. TOC control software was ...

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Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: a meta-analysis

Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: a meta-analysis

... 5 Conclusions Half of the global belowground soil OC pool is stored in circum-arctic permafrost but little is known about the pro- cesses controlling transport and degradation of DOC, a key regulator of the rate of ...

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Improved automation of dissolved organic carbon sampling for organic-rich surface waters

Improved automation of dissolved organic carbon sampling for organic-rich surface waters

... of dissolved organic carbon (DOC) fluxes for organic-rich systems such as peatlands because they are able to sample and log DOC proxies automatically through time at low ...total carbon ...

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Explorations of soil microbial processes driven by dissolved organic carbon

Explorations of soil microbial processes driven by dissolved organic carbon

... for analysis of properties by BLGG laboratories (Wageningen, The Netherlands) and one for analysis of a different set of properties by the Chemical-Biological Soil Laboratory of Wageningen ...near-infrared ...

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Linking Carbon Dynamics in Stream Ecosystems to Dissolved Organic Matter Quality

Linking Carbon Dynamics in Stream Ecosystems to Dissolved Organic Matter Quality

... and carbon data used to indicate, or causally connected to, in-stream metabolic ...derived organic matter ...and analysis of causally interpretable controls on pCO 2 may greatly contribute to an ...

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Seasonal variations in concentration and lability of dissolved organic carbon in Tokyo Bay

Seasonal variations in concentration and lability of dissolved organic carbon in Tokyo Bay

... bioavailable dissolved organic carbon (DOC) and their seasonal varia- tions were investigated at three stations in Tokyo Bay, Japan, and in two freshwater sources flowing into the ...regression ...

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Temperature dependence of the relationship between pCO2 and dissolved organic carbon in lakes

Temperature dependence of the relationship between pCO2 and dissolved organic carbon in lakes

... The largest previous comparative analysis already pub- lished in the literature for global lake waters (Sobek et al., 2005) reported a significant positive relationship between DOC and pCO 2 and a non-significant ...

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In Situ Biofiltration of Dissolved Organic Carbon in Reverse Osmosis Membrane Filtration

In Situ Biofiltration of Dissolved Organic Carbon in Reverse Osmosis Membrane Filtration

... profile analysis revealed the organisms at the front section of the membrane are different from those in the feed-water and other membrane sections, and they are more numerous than the other membrane ...

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Carbon isotopic characterisation of dissolved organic mater during water treatment

Carbon isotopic characterisation of dissolved organic mater during water treatment

... activated carbon adds ‘young’ 14 C-DOC, most likely from the presence of ...Overall, carbon isotopes provide clear evidence for the first time that new sources of organic carbon are added ...

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Nitrogen effects on the pelagic food web are modified by dissolved organic carbon

Nitrogen effects on the pelagic food web are modified by dissolved organic carbon

... multivariate analysis of variance (PERMANOVA) analysis on zooplankton community com- position data on species data [log(x + ...regression analysis of yearly means (non-manipulated lakes: N = 12, ...

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Importance of within-lake processes in affecting the dynamics of dissolved organic carbon and dissolved organic and inorganic nitrogen in an Adirondack forested lake/watershed

Importance of within-lake processes in affecting the dynamics of dissolved organic carbon and dissolved organic and inorganic nitrogen in an Adirondack forested lake/watershed

... cent retention ((influx-outflux)/influx) (mean: 6.9 %, range: − 34.8 to +31.2) compared to DOC (mean: 30.1 %, range: + 9.2 to +44.1). The resultant increase of DON within the lake was closely linked with a net decrease ...

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Nitrogen and dissolved organic carbon (DOC) losses from an artificially drained grassland on organic soils

Nitrogen and dissolved organic carbon (DOC) losses from an artificially drained grassland on organic soils

... water table and the nitrogen content of the peat were the most important parameters. Higher temperatures intensified these effects. 3.3 DOC and nitrogen concentrations in the ditch Discharge, DOC and NO 3 –N ...

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Temporal changes in photoreactivity of dissolved organic carbon and implications for aquatic carbon fluxes from peatlands

Temporal changes in photoreactivity of dissolved organic carbon and implications for aquatic carbon fluxes from peatlands

... 2.6 Data analysis Data collected in the irradiation experiments were tested for normality using the Shapiro–Wilks test and were found to be normally distributed. Unpaired t tests were conducted be- tween ...

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Removal of dissolved organic carbon and bromide by a hybrid MIEX-ultrafiltration system: Insight into the behaviour of organic fractions

Removal of dissolved organic carbon and bromide by a hybrid MIEX-ultrafiltration system: Insight into the behaviour of organic fractions

... 2 The evolution and extent of these removals depended on the MIEX dose applied, with percentage removals clearly increasing when the MIEX dose was increased from 1 mL/L to 3 mL/L. MIEX exhibited higher affinity toward ...

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Hydrologically transported dissolved organic carbon influences soil respiration in a tropical rainforest

Hydrologically transported dissolved organic carbon influences soil respiration in a tropical rainforest

... and analysis All the 24 h cumulative water samples were collected at the sampling sites between 08:00 and 10:00 LT, following the procedure outlined by Zhou et ...

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Temperature dependence of the relationship between CO 2 and dissolved organic carbon in lakes

Temperature dependence of the relationship between CO 2 and dissolved organic carbon in lakes

... The largest previous comparative analysis already pub- lished in the literature for global lake waters (Sobek et al., 2005) reported a significant positive relationship between DOC and pCO 2 and a non-significant ...

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Can the heterogeneity in stream dissolved organic carbon be explained by contributing landscape elements?

Can the heterogeneity in stream dissolved organic carbon be explained by contributing landscape elements?

... residual analysis, which highlighted areas for further conceptual model ...residual analysis, which suggest potential mechanisms to be further explored using more focused field and process-based mod- elling ...

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Effect of Sodium Exposure on Dissolved Organic Carbon and its Biodegradability in Urban Soils

Effect of Sodium Exposure on Dissolved Organic Carbon and its Biodegradability in Urban Soils

... not significantly different from DOC concentrations in soil leachate. It was also determined that the extract solution used can impact the strong relationship between DOC and DON in undisturbed and rotational crop ...

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Dissolved organic carbon dynamics in the East China Sea and the northwest Pacific Ocean

Dissolved organic carbon dynamics in the East China Sea and the northwest Pacific Ocean

... Competing interests. The authors declare that they have no conflict of interest. Acknowledgements. We thank Lixin Wu and Jing Zhang for pro- viding the ECS and KE cruise opportunity, and Huiwang Gao and Lei Li for the ...

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