Lars-Eric Heimbürger-Boavida

4 Questions 5 Answers 0 Followers

Questions related from Lars-Eric Heimbürger-Boavida

Does filtration of sea water result in loss of dissolved gaseous mercury (DGM) species (Hg0 and DMHg)?

Measurements of dissolved gases (oxygen, CFCs,..) in sea water samples is usually done on unfiltered samples, and tedious protocols need to be followed to avoid any bias (must be first sample to...

12 November 2014 4,223 9 View

What is the lifetime of methylmercury in deep ocean waters?

Better constraining the numbers for both, MMHg and DMHg, could help understanding the production, degradation, and cycling of these species in the global oceans. What do we already know and what...

11 May 2014 8,038 2 View

Which of those solutions is the most oxidizing and best for Hg trapping/extraction: 1. KMnO4/H2SO4 2. HNO3/HCl 3. BrCl ?

Permanganate trapping/ digestion solutions are frequently used for Hg extraction from solid matrices. Biswas et al. (2008) use a KMnO4/H2SO4 solution to trap gaseous Hg after double-tube furnace...

01 December 2013 3,228 3 View

Who methylates mercury in the open ocean water column?

Methylmercury concentrations of up to a few hundred femtomoles have been measured in the oxic water column of various ocean basins [1-15]. Maximum concentrations are found in the oxygen minimum...

13 March 2013 477 9 View