Determination of dissolved organic carbon and total dissolved nitrogen in seawater using High Temperature Combustion Analysis
نویسندگان
چکیده
This document describes best practices for analysis of dissolved organic matter (dissolved carbon and total nitrogen) in seawater samples. Included are SOPs sample collection storage, details laboratory using high temperature combustion on Shimadzu TOC analyzers, suggestions quality control assurance. Although written specifically GO-SHIP oceanographic community practices, many aspects processing relevant to DOM determination across oceanic regimes this aims provide updated methodology the wider marine community.
منابع مشابه
Simultaneous Determination of Dissolved Organic Carbon and Total Dissolved Nitrogen on a Coupled High-Temperature Combustion Total Organic Carbon-Nitrogen Chemiluminescence Detection (HTC TOC-NCD) System
The marine biogeochemistries of carbon and nitrogen have come under increased scrutiny because of their close involvement in climate change and coastal eutrophication. Recent studies have shown that the high-temperature combustion (HTC) technique is suitable for routine analyses of dissolved organic matter due to its good oxidation efficiency, high sensitivity, and precision. In our laboratory,...
متن کاملSimultaneous determination of dissolved organic carbon and total dissolved nitrogen in seawater by high temperature catalytic oxidation: conditions for precise shipboard measurements
Appropriate conditions have been achieve d for the accurate, rapid, and highly precise shipboard simultaneous determination of dissolved organic carbon and total dissolved nitrogen in seawater by high tem perature catalytic oxidation. A nitrogen-specific Antek 705D chemiluminescence detector and a CO 2-specific LiCor Li6252 IRGA have been coupled inseries with a Shimadzu TOC-5000 organic carbon...
متن کاملDetermination of dissolved organic nitrogen in seawater using Kjeldahl digestion after inorganic nitrogen removal
RÉSUMÉ M. D. DOVAL *,Fernando FRAGA and Fiz F. PEREZ Instituto de Investigaciones Marinas de Vigo (CSIC), Eduardo Cabello, 6, E-36208 Vigo, Spain. * Corresponding author. E-mail:[email protected] Received 15/02/96, in revised form 04/12/96, accepted 16/01/97. An update of the Kjeldahl method is presented for the direct determination of dissolved organic nitrogen (DON) in seawater. Dissolved in...
متن کاملTemperature Dependence of Photodegradation of Dissolved Organic Matter to Dissolved Inorganic Carbon and Particulate Organic Carbon
Photochemical transformation of dissolved organic matter (DOM) has been studied for more than two decades. Usually, laboratory or "in-situ" experiments are used to determine photodegradation variables. A common problem with these experiments is that the photodegradation experiments are done at higher than ambient temperature. Five laboratory experiments were done to determine the effect of temp...
متن کاملTrophic complexity in aqueous systems: bacterial species richness and protistan predation regulate dissolved organic carbon and dissolved total nitrogen removal.
Loading of water bodies with dissolved organic carbon (DOC) and dissolved total nitrogen (DTN) affects their integrity and functioning. Microbial interactions mitigate the negative effects of high nutrient loads in these ecosystems. Despite numerous studies on how biodiversity mediates ecosystem functions, whether and how diversity and complexity of microbial food webs (horizontal, vertical) an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Marine Science
سال: 2022
ISSN: ['2296-7745']
DOI: https://doi.org/10.3389/fmars.2022.1061646