Vulcan offers a full range of standard products and custom-built equipment for drying, calcining and thermal desorption
RE[degrees]kiskaup on behalf of the Landspitali University Hospital of Iceland calls for tender for Matrix-assisted laser desorption
ionization-time of flight mass spectrometer (MALDI-TOF MS).
Non-linear least squares regression procedure was used to fit five desorption
models (Table 1) to the experimental data.
Lehmann and Harter (1984) measured the kinetics of chelate-promoted Cu release from a soil to assess the strength of the bond formed, and attributed the two-stage desorption
kinetics to high- and low-energy bonding sites.
Since environmental conditions never remain stable and ambient relative humidity (RH) and temperature change continuously, repeated adsorption and desorption
of moisture take place, and MC of wood seldom reaches an equilibrium level with the surroundings.
3] solution pumped through the column during the sorption or the desorption
step, V (L) is the effluent volume, C and [C.
Because the isotherms of Ni2+ adsorption and Ca2+ desorption
were practically similar, Ni2+ ions seemed to be exclusively adsorbed by an ion exchange mechanism.
, the sample was evacuated and allowed to cool to RT before the absorption cycle was started.
Because the two adsorbers (Figure 1) operate alternatively between the adsorption and desorption
phases, the performance of one adsorber and the heat exchanger (either condenser or evaporator in Figure 1) connected to the adsorber is illustrated.
The AquaSorp can produce adsorption and desorption
isotherm curves in 24 hours or less.
and adsorption curves are achieved by flowing wet or dry air, respectively, and moisture loss and gain are determined by weight changes.
The company's other new MS technologies include: the new SmartBeam MALDI ion funnel source, which allows improved imaging of drug metabolites at therapeutic levels; the NALDI-TOF (nanotechnology laser desorption
ionization) for high-throughput molecular formula determination of small molecules; and the improved ETD II electron transfer dissociation technology (ETD) for its HCT Ultra ion trap LC/MS.
from the imprinted films has been studied by immersing the samples subjected earlier to absorption studies in a determined amount of distilled water.
In this paper, we selected 2 organic acids (citrate, oxalate) and 1 amino acid (histidine) as delegates, to investigate the influence of organic acid or amino acid on desorption
behaviours of Cd and Pb in artificially contaminated soil.
The kinetics of n/iso-butane adsorption on both open-end (o-CNTs) and closed-end nanotubes (c-CNTs) was studied with thermal desorption