scholarly journals Simultaneous determination of particulate organic carbon, nitrogen and phosphorus collected on filters, using a semi-automatic wet-oxidation method

1999 ◽  
Vol 180 ◽  
pp. 289-295 ◽  
Author(s):  
P Raimbault ◽  
F Diaz ◽  
W Pouvesle ◽  
B Boudjellal
Keyword(s):  
Organic Carbon ◽  
Simultaneous Determination ◽  
Particulate Organic Carbon ◽  
Wet Oxidation ◽  
Nitrogen And Phosphorus ◽  
Oxidation Method

Wet-oxidation and automated colorimetry for simultaneous determination of organic carbon, nitrogen and phosphorus dissolved in seawater

1999 ◽  
Vol 66 (3-4) ◽  
pp. 161-169 ◽  
Author(s):  
Patrick Raimbault ◽  
Wilfried Pouvesle ◽  
Frédéric Diaz ◽  
Nicole Garcia ◽  
Richard Sempéré
Keyword(s):  
Organic Carbon ◽  
Simultaneous Determination ◽  
Wet Oxidation ◽  
Nitrogen And Phosphorus

scholarly journals Application of a catalytic oxidation method for the simultaneous determination of total organic carbon and total nitrogen in marine sediments and soils

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0252308
Author(s):  
Pavlos Avramidis ◽  
Vlasoula Bekiari
Keyword(s):  
Organic Carbon ◽  
Total Organic Carbon ◽  
Simultaneous Determination ◽  
Catalytic Oxidation ◽  
Correlation Coefficient ◽  
Marine Sediments ◽  
Titration Method ◽  
Data Set ◽  
Oxidation Method

This study presents the application of a simultaneous method for the determination of total organic carbon (TOC) and total nitrogen (TN) in marine sediments and soils, using a data set of 206 samples collected from coastal lagoonal/marine sedimentary environments and certified reference materials (CRMs). TOC and TN were determined using the high temperature (720°C) catalytic (Pt/Al2O3) oxidation method and the detection of TOC and TN was performed using an infrared or a chemiluminescence detector, respectively. Results from the abovementioned TOC method were compared with the results from the widely used Wakley-Black titration method, while TN results with these from elemental analysis. Analytical quality control experiments were performed using CRM samples. Method characteristics such as range of measurement, calibration, method detection limit (MDL), limit of quantification (LOQ), repeatability and reproducibility, were calculated. The precision and the accuracy of the methods are also discussed. Comparison of the two TOC methods of 206 data set yields a regression line of correlation coefficient with R2 = 0.985. Additional different levels of TOC concentrations of low <1%, moderate 1–5% and high 5–40% level were examined indicating very good correlations. The lowest correlation coefficient was observed in low concentrations TOC<1% (R2 0.825), mainly as a result of the limitation of titration method. The evaluation of TN results indicated that the catalytic oxidation method and the elemental analysishave a significant good correlation with R2 = 0.977. The results of precision and accuracy, as well as the calculated MDL and LOQ show that this is a reliable method. Moreover, it requires a small amount of the analyzed sample and the total analysis time is 10 min. Therefore, it can be easily applied for the fast and precise simultaneous determination of TOC and TN in sediment and soil samples.

scholarly journals Automated simultaneous determination of total dissolved nitrogen and phosphorus in seawater by persulfate oxidation method

Talanta Open ◽  
2020 ◽  
Vol 2 ◽  
pp. 100016
Author(s):  
Saori Yasui-Tamura ◽  
Fuminori Hashihama ◽  
Hiroshi Ogawa ◽  
Takashi Nishimura ◽  
Jota Kanda
Keyword(s):  
Simultaneous Determination ◽  
Nitrogen And Phosphorus ◽  
Oxidation Method ◽  
Persulfate Oxidation ◽  
Dissolved Nitrogen ◽  
Total Dissolved Nitrogen
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