Methods for the determination of total carbon (TC), total nitrogen (TN), and total phosphorus (TP) in cattail (Typha domingensis) using cold and thermal neutron prompt gamma activation analysis (CNPGAA and TNPGAA) have been developed in the CNPGAA and
TNPGAA facilities at the National Institute of Standards and Technology (NIST), and evaluated through the analysis of Standard
Reference Materials (SRMs) in previous studies. There are major issues that impact the sensitivities of C, N and P using CNPGAA
and TNPGAA including the effects of hydrogen content in samples, sample thickness and Compton scattering. However, interference
from chlorine (Cl) in cattails has a major impact on the detection of P. This paper compares the effects of hydrogen content,
sample thickness and Compton scattering on the sensitivities of C, N, and P between CNPGAA and TNPGAA and provides a resolution
to the Cl interference on P in cattail.
Authors:E. L. Charsley, P. G. Laye, G. M. B. Parkes, and J. J. Rooney
The second example is oxygen activation studies on a copper impregnated carbon formed by the pyrolysis of a copper doped carboxy methyl cellulose sample in nitrogen at 400 °C [ 16 ]. In common with a number of
Authors:Sonja Eichholz, Martin Lerch, Michael Heck, and Dirk Walter
dust particles to human health in more detail, state-of-the-art characterization methods are required. Here, electron microscopy and thermal analysis combined with gas analysis may be taken into account [ 2 , 3 ]. A comparison of diesel soot and carbon
Carbon encapsulated Au@Fe nanoparticles (NPs) were synthesized by the hydrothermal method, and the palladium NPs (12 nm) were
immobilized on this hydroxyl-terminated support. The morphology, composition, content and magnetism of the samples were characterized.
Compared with the commercial carbon-supported Pd catalyst, high catalytic activity, recyclability and selectivity were evaluated
by the catalyst Pd/(C@(Au@Fe)) in the Heck reaction. Especially, in the Heck cross-coupling reactions of iodobenzene and methyl
acrylate, the catalyst was reused 10 times without significant loss of activity. In addition, the catalyst was simply recycled
by a magnetic field.