Oxygen incorporation

Experiments with H2 0 using Pseudomonasputida strain 86 (Bander et al. 1990) showed that the oxygen incorporated into quinol-2-one originates from water. 

The proteins in the mortars can be modified by gradual oxidation or other chemical processes. In mass spectra the peaks that can be interpreted as oxygen incorporation (the mass shift of +16 Da) or ammonia release (—15 Da) can be sometimes indicated. This observation is not surprising as several amino acids (Met, Trp, Tyr, etc.) can be oxidised under these conditions similarly, Gin and Asn can gradually release their ammonia by long-term hydrolysis in a wet inorganic matrix. 

Figure 13. Concentration depth profile of oxygen incorporated in HOPE and LDPE modified in the Ar plasma at the discharge power of 1.7 W. The numbers are the times of plasma treatment in seconds. The profiles were determined by RBS technique [70].

Figure 19. Depth profiles of oxygen incorporated into the surface layer of PE implanted with 150 keV Sb ions to the following fluences 2xl0 ( ).

Figure 40. Secondary-ion ratio map ( 0/ 0) of YSZ in the cell shown in Figure 39 following removal of LSM by etching in acid, (a) Map at the exposed YSZ surface, (b) Local analysis of the tracer across the region A—B shown in a at various depths, achieved by Cs+ ion ablation, (c) Qualitative models for oxygen incorporation used to rationalize the results in b. (Reprinted with permission from ref 231. Copyright 2002 Elsevier.)...

Oxygen incorporation at low pressures was simulated using a simple transport-kinetics model, and kinetic parameters were determined. Results of the transport-... 

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