Each fraction was concentrated to approximately 1 mL using a nitrogen concentration system and transferred to an autosampler vial (ASV) for gas chromatography mass spectrometry (GC/MS) analysis (Stapleton et al. 2014).
The reflective optics with parabolic mirror concentrators of point-focus type and the triple-junction cells (InGaP/InGas/Ge) assembled with a dual axis tracker are used to obtain a high concentration system.
The reflective optics with parabolic mirror concentrators of point-focus type and the triple-junction cells (InGaP/InGaAs/Ge) assembled with a dual axis tracker, are used in order to obtain a high concentration system.
After 1 h incubation at 30°C, the supernatants were pooled and dried to 10 μL using a vacuum concentration system.
We have demonstrated quantitative models for following ethanol production during fermentation and while these models show promising results with a low concentration system, further study is necessary to alleviate the background effects that inhibit monitoring glucose consumption.
Copepods acted as a natural concentration system, retaining high viral titers in their microbiome (we detected up to 2.5 × 10 EhV per copepod, relative to a few thousands suspended in the water column) by ingesting infected cells and viable viruses in their intestinal tracks.
Furthermore, an H2SO4 concentration system should be reasonably designed to reduce the complexity of the process and equipment settings, as well as to improve thermal efficiency.
Other design requirements are an efficient light concentration system treated with an anti-reflective coating, a liquid cooling system able to keep the SiPMs at a temperature of −20°C to −10°C, a low-power frontend electronics down to 1 kW/m2 and an easy field maintenance, high reliability data acquisition and trigger system.
The generator eluates were concentrated to about 1.2 ml using a tandem cation/anion concentration system (Guhlke et al, 2000), which consists of an Ag Plus cartridge (Alltech Associates, Deerfield, IL, USA) attached to a three-way stopcock connected at the outlet to the QMA anion trapping column SepPak® (Waters Corporation, Milford, MA, USA) anion-exchange column.
