A mass spectrometer‐based pore‐water sampling system for sandy sediments

2021 ◽  
Author(s):  
Emily J. Chua ◽  
Robert Timothy Short ◽  
Andres M. Cardenas‐Valencia ◽  
William Savidge ◽  
Robinson W. Fulweiler
Keyword(s):  
Pore Water ◽  
Mass Spectrometer ◽  
Water Sampling ◽  
Sampling System ◽  
Sandy Sediments

A high-resolution pore water sampler for sandy sediments

2001 ◽  
Vol 46 (1) ◽  
pp. 203-210 ◽  
Author(s):  
Peter Berg ◽  
Karen J. McGlathery
Keyword(s):  
High Resolution ◽  
Pore Water ◽  
Water Sampler ◽  
Sandy Sediments ◽  
Pore Water Sampler

Double-Membrane Sampling System in a Mass Spectrometer for the Study of Exhaled Air

2018 ◽  
Vol 63 (10) ◽  
pp. 1543-1551
Author(s):  
V. Kogan ◽  
A. S. Antonov ◽  
Yu. V. Chichagov ◽  
O. S. Victorova-Leclerc ◽  
I. V. Victorov ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Sampling System ◽  
Double Membrane ◽  
Exhaled Air

Blood gas tension measurement using a mass spectrometer

1961 ◽  
Vol 16 (3) ◽  
pp. 562-565 ◽  
Author(s):  
L. B. Strang
Keyword(s):  
Mass Spectrometer ◽  
The Other ◽  
Small Bubble ◽  
Blood Gas ◽  
Sampling System

A bubble equilibration method for the analysis of blood gas tensions is described. A small bubble is equilibrated with blood in a syringe as in the Riley technique and subsequently analyzed in a respiratory mass spectrometer with a modified sampling system. The method is extremely simple and rapid and has an accuracy comparable with the other available techniques. Submitted on January 16, 1961

The Boom Clay geochemistry: Natural evidence

2006 ◽  
Vol 932 ◽  
Author(s):  
M. De Craen
Keyword(s):  
Pore Water ◽  
Point Of View ◽  
Water Sampling ◽  
Spent Fuel ◽  
Geochemical Composition ◽  
Boom Clay ◽  
Water Composition ◽  
Geological Processes ◽  
Long Time ◽  
High Level

ABSTRACTIn Belgium, the Boom Clay is studied as the reference formation for geological disposal of high-level radioactive waste and spent fuel. As the Boom Clay is considered as the main barrier for radionuclide migration/retention, a thorough characterisation of the clay and its pore water was done. This facilitates better understanding of the long-term geological processes and the distribution of the trace elements and radionuclides.From a mineralogical/geochemical point of view, the Boom Clay is considered as a rather homogeneous sediment, vertically as well as laterally. It is composed of detrital minerals, organic matter and fossils. Minerals are mainly clay minerals, quartz and feldspars. Minor amounts of pyrite and carbonates are also present. Small variations in mineralogical/geochemical composition are related to granulometrical variations. The radiochemical study indicates that the Boom Clay is in a state of secular radioactive equilibrium, meaning that the Boom Clay has not been disturbed for a very long time.Pore water sampling is done in situ from various piezometers, or by the squeezing or leaching of clay cores in the laboratory. These three pore water sampling techniques have been compared and evaluated. Boom Clay pore water is a NaHCO3 solution of 15 mM, containing 115 mg·1−1 of dissolved natural organic carbon. Some slight variations in pore water composition have been observed and can be explained by principles of chemical equilibrium.

Planning of Soil-Pore Water Sampling Campaigns Using Pesticide Transport Modeling

1992 ◽  
Vol 12 (3) ◽  
pp. 195-202 ◽  
Author(s):  
O. Banton ◽  
P. Lafranee ◽  
R. Martel ◽  
J.P. Villeneuve
Keyword(s):  
Pore Water ◽  
Transport Modeling ◽  
Water Sampling ◽  
Soil Pore Water ◽  
Pesticide Transport
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