Evaluation of a Multichannel Inductively Coupled Plasma-Optical Emission Spectrometer Modified to Minimize and Correct Scattered Light Effects

1980 ◽  
Vol 34 (4) ◽  
pp. 472-477 ◽  
Author(s):  
Charles E. Taylor ◽  
Terrance L. Floyd
Keyword(s):  
Inductively Coupled Plasma ◽  
Scattered Light ◽  
Optical Emission ◽  
Holographic Grating ◽  
Inductively Coupled ◽  
Light Effects ◽  
Spectrometer Data ◽  
Optical Emission Spectrometer

In a study of an inductively coupled plasma optical emission spectrometer, data from an early commercially available instrument are compared with data from the same instrument after modifications to correct observed inadequacies. Results show negligible changes in powers of detection but considerable reductions in scattered light interferences following the installation of a holographic grating.

Concentration of selected elements in the hair of Madagascar girls in relation to nutritional status and place of residence

2021 ◽  
pp. 1-32
Author(s):  
Magdalena Zielińska-Dawidziak ◽  
Magdalena Czlapka-Matyasik ◽  
Zofia Wojciechowska ◽  
Jędrzej Proch ◽  
Przemysław Niedzielski
Keyword(s):  
Factor Analysis ◽  
Nutritional Status ◽  
Inductively Coupled Plasma ◽  
Toxic Elements ◽  
Scalp Hair ◽  
Optical Emission ◽  
Place Of Residence ◽  
Inductively Coupled ◽  
Cr Content ◽  
Optical Emission Spectrometer

Abstract Although the children malnutrition in Madagascar and the environmental pollution of this country has been widely discussed, there is no research on the differences in toxic elements accumulation in human body in dependence on nutritional status of Malagasy. Nine elements concentration (Al, As, Cd, Cr, Hg, Ni, Pb, Sn and Sb) was determined in scalp hair of 103 schoolgirls (8–15 years old), living in two areas: urban - close to Antananarivo (UR) and rural Berevo region (RU). Samples were analyzed by an inductively coupled plasma-optical emission spectrometer. The nutritional status was evaluated by Cole’s Index. Underweight was related to higher accumulation of Al, Cd, and Cr in the hair girls, and more common among girls living in RU than UR region (42% vs 28%). Two-factor analysis of variance showed differences in the Al and Cr content in the girls’ hair depending both on their place of residence and nutritional status. This indicates additional consequence of malnutrition to the girls development and health.

scholarly journals THE MATHEMATICAL MODELING OF METALS CONTENT IN PEAT

2015 ◽  
Vol 1 ◽  
pp. 249
Author(s):  
Edmunds Teirumnieks ◽  
Ērika Teirumnieka ◽  
Ilmārs Kangro ◽  
Harijs Kalis
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Peat Bog ◽  
Inductively Coupled ◽  
Pollution Loading ◽  
The Mathematical Model ◽  
Optical Emission Spectrometer

Metals deposition in peat can aid to evaluate impact of atmospheric or wastewaters pollution and thus can be a good indicator of recent and historical changes in the pollution loading. For peat using in agriculture, industrial, heat production etc. knowledge of peat metals content is important. Experimental determination of metals in peat is very long and expensive work. Using experimental data the mathematical model for calculation of concentrations of metals in different points for different layers is developed. The values of the metals (Ca, Mg, Fe, Sr, Cu, Zn, Mn, Pb, Cr, Ni, Se, Co, Cd, V, Mo) concentrations in different layers in peat taken from Knavu peat bog from four sites are determined using inductively coupled plasma optical emission spectrometer. Mathematical model for calculation of concentrations of metal has been described in the paper. As an example, mathematical models for calculation of Pb concentrations have been analyzed.

scholarly journals Element Vaporization of Ti-6Al-4V Alloy during Selective Laser Melting

Metals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 435 ◽  
Author(s):  
Guohao Zhang ◽  
Jing Chen ◽  
Min Zheng ◽  
Zhenyu Yan ◽  
Xufei Lu ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Selective Laser Melting ◽  
Inductively Coupled Plasma ◽  
Energy Input ◽  
Laser Energy ◽  
Optical Emission ◽  
Enskog Theory ◽  
Laser Melting ◽  
Inductively Coupled ◽  
Optical Emission Spectrometer

The present study aims to reveal the mechanism of element vaporization of Ti-6Al-4V alloy during selective laser melting (SLM). The equations of Redlich–Kister and the thermodynamics principles were employed to calculate the vaporization thermodynamics, which contributes to the obtaining the vaporization kinetic based on the Chapman-Enskog theory and the diffusion model. According to the achieved vaporization model, the elements with the most prominent tendency and flux to vaporize were distinguished. Moreover, the effect of the process parameters on the vaporization of Al and Ti is experimentally investigated using inductively coupled plasma optical emission spectrometer (ICP) technology. The analyzed results of the chemical composition of the powders and builds show a great agreement with the kinetic results calculated by the vaporization model. Notably, the element vaporization can be curbed by regulating the laser energy input.

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