A dissolved inorganic carbon measurement method featured self-calibration function via an electrodialytic generator

The Analyst ◽  
2022 ◽  
Author(s):  
Yonghan Peng ◽  
Jiaying Wang Wang ◽  
Feifang Zhang ◽  
Bingcheng Yang
Keyword(s):  
Measurement Method ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Flow Analysis ◽  
Gas Diffusion ◽  
Calibration Function ◽  
Diffusion Flow ◽  
Self Calibration ◽  
Analysis System

A simple dissolved inorganic carbon (DIC) measurment method featured self-calibration function via an electrodialytic bicarbonate eluent generator (cEDG) is described. It is based on gas diffusion flow analysis system that...

Underway determination of dissolved inorganic carbon in estuarine waters by gas-diffusion flow analysis with C4D detection

2012 ◽  
Vol 4 (5) ◽  
pp. 1278 ◽  
Author(s):  
Somkid Pencharee ◽  
Peter A. Faber ◽  
Peter S. Ellis ◽  
Perran Cook ◽  
Janpen Intaraprasert ◽  
...  
Keyword(s):  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Flow Analysis ◽  
Gas Diffusion ◽  
Diffusion Flow ◽  
Estuarine Waters

Continuous-Flow Analysis of Dissolved Inorganic Carbon Content in Seawater

2001 ◽  
Vol 73 (17) ◽  
pp. 4111-4116 ◽  
Author(s):  
M. H. C. Stoll ◽  
K. Bakker ◽  
G. H. Nobbe ◽  
R. R. Haese
Keyword(s):  
Carbon Content ◽  
Continuous Flow ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Flow Analysis ◽  
Continuous Flow Analysis

A new strategy for membraneless gas-liquid separation in flow analysis: Determination of dissolved inorganic carbon in natural waters

2019 ◽  
Vol 145 ◽  
pp. 1218-1223 ◽  
Author(s):  
Milton K. Sasaki ◽  
Pedro A.F. Souza ◽  
Marcos Y. Kamogawa ◽  
Boaventura F. Reis ◽  
Fábio R.P. Rocha
Keyword(s):  
Natural Waters ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Flow Analysis ◽  
Liquid Separation ◽  
New Strategy ◽  
Analysis Determination

scholarly journals Underway Measurement of Dissolved Inorganic Carbon (DIC) in Estuarine Waters

2020 ◽  
Vol 8 (10) ◽  
pp. 765
Author(s):  
Jinpei Yan ◽  
Qi Lin ◽  
Seng Chee Poh ◽  
Yuhong Li ◽  
Liyang Zhan
Keyword(s):  
Electrical Conductivity ◽  
Water Sample ◽  
Inorganic Carbon ◽  
Dissolved Inorganic Carbon ◽  
Sample Volume ◽  
Gas Diffusion ◽  
Time Interval ◽  
Ultrapure Water ◽  
Estuarine Waters ◽  
Relative Standard

Dissolved inorganic carbon (DIC) is an important parameter of the marine carbonate system. Underway analyses of DIC are required to describe spatial and temporal changes of DIC in marine systems. In this study, we developed a microvolume flow detection method for the underway determination of DIC in marine waters, using gas-diffusion flow analysis in conjunction with electrical conductivity (EC) measurement. Only an acid carrier reagent (0.2 mol.L−1) and an ultrapure water acceptor are required for the DIC monitoring system. In this system, a sampling loop (100 µL) is used to quantify the injection sample volume, allowing micro-sample volume detection. The water sample reacts with the acid reagent to convert carbonate and bicarbonate species into CO2. The water sample is then carried into a gas-diffusion assembly, where the CO2 diffuses from the sampling stream into the acceptor stream. CO2 in the acceptor is detected subsequently by an electrical conductivity. The limit of DIC detection using ultrapure water is 0.16 mM. A good repeatability is obtained, with a relative standard deviation (RSD) of 0.56% (1 mM, n = 21). The time interval for detecting one sample is 5 min. During the observation period, measurements can be switched between standard solutions and water samples automatically. Accuracy and precision of the instrument is sufficient for the underway observation of marine DIC in estuarine waters.

Underway determination of alkalinity in estuarine waters by reagent-injection gas-diffusion flow analysis

Talanta ◽  
2008 ◽  
Vol 77 (2) ◽  
pp. 533-540 ◽  
Author(s):  
S GRAY ◽  
P ELLIS ◽  
M GRACE ◽  
I MCKELVIE
Keyword(s):  
Flow Analysis ◽  
Gas Diffusion ◽  
Diffusion Flow ◽  
Estuarine Waters
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