Spatially resolved, excited state densities and neutral and ion temperatures in inductively coupled argon plasmas

1996 ◽  
Vol 80 (5) ◽  
pp. 2624-2636 ◽  
Author(s):  
G. A. Hebner
Keyword(s):  
Excited State ◽  
Inductively Coupled ◽  
Spatially Resolved ◽  
Argon Plasmas ◽  
State Densities

scholarly journals Effective processing and evaluation of chemical imaging data with respect to morphological features of the zebrafish embryo

2021 ◽  
Author(s):  
Katharina Halbach ◽  
Timothy Holbrook ◽  
Thorsten Reemtsma ◽  
Stephan Wagner
Keyword(s):  
Inductively Coupled Plasma ◽  
Zebrafish Embryo ◽  
Statistical Significance ◽  
Software Tool ◽  
Chemical Imaging ◽  
Imaging Data ◽  
Inductively Coupled ◽  
Spatially Resolved ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

AbstractA workflow was developed and implemented in a software tool for the automated combination of spatially resolved laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) data and data on the morphology of the biological tissue. Making use of a recently published biological annotation software, FishImager automatically assigns the biological feature as regions of interest (ROIs) and overlays them with the quantitative LA-ICP-MS data. Furthermore, statistical tools including cluster algorithms can be applied to the elemental intensity data and directly compared with the ROIs. This is effectively visualized in heatmaps. This allows gaining statistical significance on distribution and co-localization patterns. Finally, the biological functions of the assigned ROIs can then be easily linked with elemental distributions. We demonstrate the versatility of FishImager with quantitative LA-ICP-MS data of the zebrafish embryo tissue. The distribution of natural elements and xenobiotics is analyzed and discussed. With the help of FishImager, it was possible to identify compartments affected by toxicity effects or biological mechanisms to eliminate the xenobiotic. The presented workflow can be used for clinical and ecotoxicological testing, for example. Ultimately, it is a tool to simplify and reproduce interpretations of imaging LA-ICP-MS data in many applications. Graphical abstract

scholarly journals Relevance for food sciences of quantitative spatially resolved element profile investigations in wheat ( Triticum aestivum ) grain

2013 ◽  
Vol 10 (84) ◽  
pp. 20130296 ◽  
Author(s):  
Paula Pongrac ◽  
Ivan Kreft ◽  
Katarina Vogel-Mikuš ◽  
Marjana Regvar ◽  
Mateja Germ ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Tissue Level ◽  
Emission Spectrometry ◽  
Bulk Analysis ◽  
Inductively Coupled ◽  
Element Concentrations ◽  
Spatially Resolved ◽  
Soil Zn

Bulk element concentrations of whole grain and element spatial distributions at the tissue level were investigated in wheat ( Triticum aestivum ) grain grown in Zn-enriched soil. Inductively coupled plasma mass spectrometry and inductively coupled plasma optical emission spectrometry were used for bulk analysis, whereas micro-proton-induced X-ray emission was used to resolve the two-dimensional localization of the elements. Soil Zn application did not significantly affect the grain yield, but did significantly increase the grain Ca, Fe and Zn concentrations, and decrease the grain Na, P and Mo concentrations; bulk Mg, S, K, Mn, Cu, Cd and Pb concentrations remained unchanged. These changes observed in bulk element concentrations are the reflection of tissue-specific variations within the grain, revealing that Zn application to soil can lead to considerable alterations in the element distributions within the grain, which might ultimately influence the quality of the milling fractions. Spatially resolved investigations into the partitioning of the element concentrations identified the tissues with the highest element concentrations, which is of utmost importance for accurate prediction of element losses during the grain milling and polishing processes.

scholarly journals Optical Diagnostics for a High.Power, RF-Inductively Coupled Plasma

1988 ◽  
Vol 117 ◽  
Author(s):  
N. S. Nogar ◽  
G. L. Keaton ◽  
J. E. Anderson ◽  
M. Trkula
Keyword(s):  
Flow Rate ◽  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Local Thermodynamic Equilibrium ◽  
Laser Induced Fluorescence ◽  
Rf Power ◽  
Inductively Coupled ◽  
Spatially Resolved ◽  
Hull Design ◽  
Ar Gas

AbstractEmission spectroscopy and laser-induced fluorescence have been used to monitor the field and tail-flame regions of a Hull-design 1 inductively coupled plasma. This plasma is used for a variety of syntheses 2,3 including SiC, TiC, BN, AlN and diamond. Temporallyand spatially-resolved spectra of both pure Ar and Ar/gas mixtures have been studied as a function of RF power, pressure and flow rate. Preliminary data suggest that the system is far from local thermodynamic equilibrium.

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