At time intervals throughout the experiments, samples were extracted from reaction vessels and total dissolved U analyzed using ICP-MS.
In both experiments, samples of duodenal digesta, plasma, and milk were collected and analyzed for fatty acids.
In the present LPH experiments, samples were repeatedly pulse heated to simulate the effects of multiple gun firings.
For N-methylmesoporphyrin IX (NMM -staining experimeNMM -stainingwexperimentsed with NMM for at leasamplesin at room temperature prior to gel loading.
The cooling rates differ significantly between laboratory experiments (samples cool in 20 30 minutes) and plutonic rocks (cool in thousands to millions of years).
Sintering experiments: samples were held in the furnace for 30, 60 or 120 minutes, respectively, and allowed to cool under ambient conditions (Figure 2a).
To achieve a specific size range of material for experiments, samples are either dry sieved [17, 18], wet sieved [16], or both [11].
In these experiments samples of the three different Carrara marble types and of the naturally rust stained Greenlandic marble were used.
After the completion of the experiments, samples of Mn oxide were removed from the columns and analyzed by analytical scanning and transmission electron microscopy.
Prior to leaching experiments, samples of the ground material were soaked in 3 M hydrochloric acid solution for 36 h, filtered, rinsed with double-distilled water, dried with acetone, and kept under vacuum in a desiccator.
During the first hour of reaction, 2 ml sample volumes were collected from the reactor every 10-20 minutes for analysis of solution composition; in the longer experiments, samples were collected at 30 minute intervals during the second hour.
