Aquifer geochemistry was characterized at a field site in the Munshiganj district of Bangladesh where the groundwater is severely contaminated by As. Vertical profiles of aqueous and solid phase

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Sep 30, 1998 · For analysis in the GC/headspace, 13 μl of the sample was taken in a high precision Hamilton microsyringe and was directly injected into a headspace vial of volume 22.5 ml. Same procedure was followed for the retentate sample for the GC.The experimental procedure for vapor permeation experiments will be briefly described now.

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Dec 20, 2015 · For the analysis of the δ 13 DIC, a headspace was created which is filled with helium and 300 mL of H 3 PO 4 was added to convert all inorganic carbon species to CO 2. After overnight equilibration, part of the headspace was injected into the helium stream of an elemental analyser-isotope ratio mass spectrometer (EA-IRMS, MAT 253 coupled with

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