: Paleoclimatología: total organic carbon

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total organic carbon

Total organic carbon (TOC) is the total amount of carbon contained in an aqueous sample of organic origin. For example, it includes the carbon in bones or shells, but excludes gases such as CO2. Total organic carbon (TOC) is universally measured by oxidizing the organic compounds present into forms that can be quantified. Various oxidation and detection methods are used, depending on the nature and concentration of the TOC being measured, and on analytical requirements (e.g. speed, sensitivity). Total organic carbon (TOC) is a measure of the total amount of carbon in organic compounds in pure water and aqueous systems. TOC is a popular analytical technique used by organizations and laboratories to determine the suitability of a solution for their processes. Unless it's ultrapure water, water will naturally contain organic compounds, so understanding how much is essential. Total organic carbon has become an important parameter used to monitor overall levels of organic compounds present. Despite the absence of any direct quantitative correlation between total organic carbon and the total concentration of organic compounds present, it reflects the importance of having an easy-to-measure general indicator of the approximate level of organic contamination. (Adapted and translated from: https://www.aquaportail.com/dictionnaire/definition/4595/carbone-organique-total)

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