scholarly journals Profiling metals in Cordyceps sinensis by using inductively coupled plasma mass spectrometry

2017 ◽  
Vol 9 (4) ◽  
pp. 724-728 ◽  
Author(s):  
Xin Wei ◽  
Hankun Hu ◽  
Baogeng Zheng ◽  
Zikri Arslan ◽  
Hung-Chung Huang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Toxic Metals ◽  
Inductively Coupled Plasma ◽  
Cordyceps Sinensis ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
First Time ◽  
Assay Protocol

In this work an assay protocol based on the ICP-MS technique was developed and validated to simultaneously determine 24 essential, non-essential, and toxic metals for the first time in C. sinensis.

Detection of microplastics using inductively coupled plasma-mass spectrometry (ICP-MS) operated in single-event mode

2020 ◽  
Vol 35 (3) ◽  
pp. 455-460 ◽  
Author(s):  
Eduardo Bolea-Fernandez ◽  
Ana Rua-Ibarz ◽  
Milica Velimirovic ◽  
Kristof Tirez ◽  
Frank Vanhaecke
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Single Event ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
First Time

The occurrence of microplastics (MPs) in the environment is a matter of increasing concern. In this work, it has been shown for the first time that ICP-MS operated in single-event mode can be used for the characterization of MPs relying on their C content.

scholarly journals Fetuin exhibits a strong affinity for plutonium and may facilitate its accumulation in the skeleton

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Claude Vidaud ◽  
Laurent Miccoli ◽  
Florian Brulfert ◽  
Jean Aupiais
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Protein Complexes ◽  
Binding Constants ◽  
Relative Distribution ◽  
Inductively Coupled ◽  
Uptake Pathway ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
First Time

AbstractAfter entering the blood, plutonium accumulates mainly in the liver and the bones. The mechanisms leading to its accumulation in bone are, however, completely unknown. We already know that another uptake pathway not involving the transferrin-mediated pathways is suspected to intervene in the case of the liver. Fetuin, a protein playing an important role in bone metabolism, is proposed as a potential transporter of Pu from serum to bone. For the first time, the binding constants of these two proteins (transferrin and fetuin) with tetravalent plutonium at physiological pH (pH 7.0) were determined by using capillary electrophoresis (CE) coupled with inductively coupled plasma mass spectrometry (ICP-MS). Their very close values (log10 KPuTf = 26.44 ± 0.28 and log10 KPuFet = 26.20 ± 0.24, respectively) suggest that transferrin and fetuin could compete to chelate plutonium, either in the blood or directly at bone surfaces in the case of Pu deposits. We performed competition reaction studies demonstrating that the relative distribution of Pu-protein complexes is fully explained by thermodynamics. Furthermore, considering the average concentrations of transferrin and fetuin in the blood, our calculation is consistent with the bio-distribution of Pu observed in humans.

Single Particle Inductively Coupled Plasma Mass Spectrometry: Investigating Nonlinear Response Observed in Pulse Counting Mode and Extending the Linear Dynamic Range by Compensating for Dead Time Related Count Losses on a Microsecond Timescale

2019 ◽  
Author(s):  
Ingo Strenge ◽  
Carsten Engelhard
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Nonlinear Response ◽  
Dynamic Range ◽  
Dead Time ◽  
Inorganic Nanoparticles ◽  
Linear Dynamic Range ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

<p>The article demonstrates the importance of using a suitable approach to compensate for dead time relate count losses (a certain measurement artefact) whenever short, but potentially strong transient signals are to be analysed using inductively coupled plasma mass spectrometry (ICP-MS). Findings strongly support the theory that inadequate time resolution, and therefore insufficient compensation for these count losses, is one of the main reasons for size underestimation observed when analysing inorganic nanoparticles using ICP-MS, a topic still controversially discussed.</p>

Sign in / Sign up

Export Citation Format

Share Document