scholarly journals Impact of EDDS Dosage on Lead Phytoextraction in Contaminated Urban Residential Soils

2022 ◽  
Vol 3 ◽  
Author(s):  
Zhiming Zhang ◽  
Dibyendu Sarkar ◽  
Virinder Sidhu ◽  
Manas Warke ◽  
Rupali Datta
Keyword(s):  
Inductively Coupled Plasma ◽  
San Antonio ◽  
Chelating Agent ◽  
Optical Emission ◽  
Green Technology ◽  
Strong Correlations ◽  
Jersey City ◽  
Inductively Coupled ◽  
Residential Properties

Lead (Pb) contamination in soils of residential properties due to peeling and chipping of Pb-based paint can cause human health problems. Phytoextraction is a green technology that has the potential to remediate soil Pb. The efficiency of phytoextraction is dependent on the geochemical forms of Pb in soil. A biodegradable chelating agent, ethylenediaminedisuccinic acid (EDDS), was previously shown to enhance Pb removal by facilitating phytoextraction. In this study, EDDS was tested at various concentrations for its potential in mobilizing Pb in urban residential soils in Jersey City, New Jersey, and San Antonio, Texas. Results show that the concentrations of plant-available forms of Pb increased with the increasing dosage of EDDS from 2 to 30 mmol/L. The addition of EDDS at 30 mmol/L resulted in the conversion of up to 61.2% and 68.9% of the total Pb to plant-available forms in Jersey City and San Antonio soils, respectively. Further analysis showed that, after EDDS application, carbonate-bound Pb, oxide-bound Pb, organic-bound Pb, and residual silicate-bound Pb were transformed to plant-available forms. Higher doses of EDDS performed better than lower doses in transforming soil Pb forms, especially for the oxide-bound Pb. Strong correlations between Pb concentrations measured on-site using a portable X-ray Fluorescence Analyzer (p-XRF) and those obtained in the laboratory using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) confirmed that p-XRF is a reliable rapid, convenient technology to measure Pb levels in situ.

Effect of Annealing Conditions on the Dissolution Process of Complex Carbonitrides in a V-Nb-Ti Microalloyed Steel

2018 ◽  
Vol 941 ◽  
pp. 21-26
Author(s):  
Gloria Basanta ◽  
Ana L. Rivas ◽  
Ervis Díaz ◽  
Carlos Parra
Keyword(s):  
Inductively Coupled Plasma ◽  
Microalloyed Steel ◽  
Optical Emission ◽  
Dissolution Process ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Annealing Conditions ◽  
Plasma Optical Emission Spectrometry

The present work has been undertaken to assess the evolution of dissolution process of large dendritic precipitates in a V-Nb-Ti microalloyed steel. The study was performed by reheating the samples at 1250°C, simulating the industrial reheating practices at laboratory scale and in situ, following industrial profile; afterwards the samples were quenched in 10%NaCl aqueous solution. The characterization of the material was carried out by scanning electron microscopy accompanied with dispersive energy spectrometry, and chemical analysis by inductively coupled plasma optical emission spectrometry. The results showed a partial dissolution of dendritic precipitates. This process ocurred by a progressive dissolving the Nb-rich shells formed over cuboidal particles and primary arm of well-faceted dendritic precipitates, and by fragmentation and spheroidization of secondary branches. These processes gave rise to spherical Nb rich precipitates and cuboidal particles at the reheating conditions used in this study. Both type of particles contain vanadium.

Nanosecond laser ablation tandem inductively coupled plasma mass and optical emission spectrometry for micro-chemical elemental analysis

2017 ◽  
Vol 32 (11) ◽  
pp. 2246-2253 ◽  
Author(s):  
Gelian Gong ◽  
Saijun Sun ◽  
Jibin Zhou ◽  
Congyin Li ◽  
Xu Liang ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Nanosecond Laser ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Concentration Determination ◽  
Nanosecond Laser Ablation ◽  
Icp Ms

Simultaneous in situ concentration determination by LA-ICP-MS and LA-ICP-OES.

scholarly journals Verifying the feasibility of using Hand-Held X-ray fluorescence spectrometer to analyze Linqing brick: evaluation of the influencing factors and assessing reliability

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Zexuan Chen ◽  
Long Zhang ◽  
Feng Hou ◽  
Jialiang Xie
Keyword(s):  
Influencing Factors ◽  
Inductively Coupled Plasma ◽  
Cross Validation ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Chinese History ◽  
X Ray ◽  
Inductively Coupled ◽  
Fluorescence Spectrometer

Abstract Linqing brick is quite popular in Chinese history. Currently, identifying the origin of Linqing brick is an important issue to be studied in the field of archeology and architectural history in China. Hand-Held X-ray fluorescence (HH-XRF) spectrometry enables the in situ determination of the main elements in Linqing brick in a rapid non-destructive manner. HH-XRF is important in identifying the origin of Linqing brick. However, HH-XRF could be influenced by certain factors and may be capable of measuring only the element contents of the surface for the bricks in situ. The present study aimed to verify the reliability of HH-XRF and to systematically evaluate the different factors influencing measurement precision and accuracy so that scientific advice could be provided regarding the usage of HH-XRF for this application. Four experiments were performed to determine the influencing factors and assess the reliability through cross-validation using inductively coupled plasma optical emission spectrometry (ICP-OES). Finally, the influence of the different studied factors was studied, and the reliability of HH-XRF was ensured. The facts to consider about the measurement time, cross validation, criteria to select points, treat surface and getting final data and how to avoid the effect of rain, while using this method, are provided.

scholarly journals Verifying the feasibility of using Hand-Held X-ray fluorescence spectrometer to analyze Linqing brick: evaluation of the influencing factors and assessing reliability

2020 ◽  
Author(s):  
Zexuan Chen ◽  
Long Zhang ◽  
Feng Hou ◽  
Jialiang Xie
Keyword(s):  
Influencing Factors ◽  
Inductively Coupled Plasma ◽  
Cross Validation ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Chinese History ◽  
X Ray ◽  
Inductively Coupled ◽  
Fluorescence Spectrometer

Abstract Linqing brick is quite popular in Chinese history. Currently, identifying the origin of Linqing brick is an important issue to be studied in the field of archeology and architectural history in China. Hand-Held X-ray fluorescence (HH-XRF) spectrometry enables the in-situ determination of the main elements in Linqing brick in a rapid non-destructive manner. HH-XRF is important in identifying the origin of Linqing brick. However, HH-XRF could be influenced by certain factors and may be capable of measuring only the element contents of the surface for the bricks in situ. The present study aimed to verify the reliability of HH-XRF and to systematically evaluate the different factors influencing measurement precision and accuracy so that scientific advice could be provided regarding the usage of HH-XRF for this application. Four experiments were performed to determine the influencing factors and assess the reliability through cross-validation using inductively coupled plasma optical emission spectrometry (ICP-OES). Finally, the influence of the different studied factors was studied, and the reliability of HH-XRF was ensured. The facts to consider about the measurement time, cross validation, criteria to select points, treat surface and getting final data and how to avoid the effect of rain, while using this method, are provided.

Effect of process variations of polycaprolactone modification on wood durability, dimensional stability and boron leaching

Holzforschung ◽  
2019 ◽  
Vol 73 (9) ◽  
pp. 847-858 ◽  
Author(s):  
Mahmut Ali Ermeydan ◽  
Zeynep Nur Kartal ◽  
Eylem D. Tomak
Keyword(s):  
Dimensional Stability ◽  
Cell Walls ◽  
Inductively Coupled Plasma ◽  
Graft Polymerization ◽  
Optical Emission ◽  
Process Variations ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Biological Durability

AbstractIn this study,in situgraft polymerization of ε-caprolactone (CL) was studied for its potential to limit boric acid (BA) leaching from wood, and to increase the dimensional stability and biological durability of wood againstConiophora puteanaandTrametes versicolorfungi. For this purpose, CL monomer with/without BA was impregnated into wood, and the monomer was polymerized in wood cell walls using various methods and combinations of reactants. It was found that biodegradable polycaprolactone (PCL) grafting at high monomer concentrations could inhibit fungal degradation of wood cell walls, as well as improve the dimensional stability of wood up to 55% and reduce water uptake (WU) by about 50%. However, inductively coupled plasma-optical emission spectrometry (ICP-OES) analysis revealed thatin situgraft polymerization of CL is not an effective method to prevent BA leaching from wood.

scholarly journals Verifying the feasibility of using Hand-Held X-ray fluorescence spectrometer to analyze Linqing brick: evaluation of the influencing factors, assessing reliability, and providing scientific advice

2020 ◽  
Author(s):  
Zexuan Chen ◽  
Long Zhang ◽  
Feng Hou ◽  
Jialiang Xie
Keyword(s):  
Influencing Factors ◽  
Inductively Coupled Plasma ◽  
Cross Validation ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Chinese History ◽  
Scientific Advice ◽  
X Ray ◽  
Inductively Coupled

Abstract Linqing brick is quite popular in Chinese history. Currently, identifying the origin of Linqing brick is an important issue to be studied in the field of archeology and architectural history in China. Hand-Held X-ray fluorescence (HH-XRF) spectrometry enables the in-situ determination of the main elements in Linqing brick in a rapid non-destructive manner. HH-XRF is important in identifying the origin of Linqing brick. However, HH-XRF could be influenced by certain factors and may be capable of measuring only the element contents of the surface for the bricks in situ. The present study aimed to verify the reliability of HH-XRF and to systematically evaluate the different factors influencing measurement precision and accuracy so that scientific advice could be provided regarding the usage of HH-XRF for this application. Four experiments were performed to determine the influencing factors and assess the reliability through cross-validation using inductively coupled plasma optical emission spectrometry (ICP-OES). Finally, the influence of the different studied factors was studied, and the reliability of HH-XRF was ensured. The facts to consider about the measurement time, cross validation, criteria to select points, treat surface and getting final data and how to avoid the effect of rain, while using this method, are provided.

SYNTHESIS AND CHARACTERIZATION OF TERNARY AL-C-N COMPOUND

2002 ◽  
Vol 16 (06n07) ◽  
pp. 1132-1137 ◽  
Author(s):  
N. JIANG ◽  
S. XU ◽  
K. N. OSTRIKOV ◽  
E. L. TSAKADZE ◽  
J. D. LONG ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Flow Rate Ratio ◽  
In Situ Observation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Inductively Coupled

An attempt for modification of carbon nitride material by introduction of Al to form a ternary Al-C-N compound in a thin film deposited using inductively coupled plasma (ICP) assisted DC magnetron sputtering is reported. Optical emission spectroscopy (OES) is used for in-situ observation and identification of reactive species. The films were characterized using x-ray photoelectron spectroscopy (XPS) and x-ray diffraction spectroscopy (XRD). The results indicate that C-N bond is formed in the plasma. The XPS narrow scam spectra confirm the existence of C-Al, sp2C-N and sp3C-N bonds. Elemental proportion of carbon increases with the CH4/N2 flow rate ratio, and has a tendency to saturate. The film is dominated by c-AlN (111), mixed with Al4C3 and AlCN ternary compound.

scholarly journals Verifying the feasibility of using Hand-Held X-ray fluorescence spectrometer to identify the origin of Linqing brick: evaluation of the influencing factors, assessing reliability, and providing scientific advice

2020 ◽  
Author(s):  
Zexuan Chen ◽  
Long Zhang ◽  
Feng Hou ◽  
Jialiang Xie
Keyword(s):  
Influencing Factors ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Chinese History ◽  
Scientific Advice ◽  
X Ray ◽  
Inductively Coupled ◽  
Heritage Buildings

Abstract Linqing brick is quite popular in Chinese history. In 2008, “The manufacturing process of Linqing brick” was selected as the intangible cultural heritage list in China. Currently, identifying the origin of Linqing brick represents an important issue to be investigated in the field of archeology and architectural history research in China, as it could be used to verify certain assumptions regarding the history of heritage buildings, the resolution for which cannot be obtained by examining the historical documents. Hand Held X-ray fluorescence (HH-XRF) spectrometry enables the in-situ determination of the main elements and concentrations of Linqing brick in a rapid non-destructive manner. HH-XRF may prove to be significant in identifying the origin of Linqing brick. However, HH-XRF could be influenced by certain factors and may be capable of measuring only the element concentrations of the surface for the brick in situ. Which method would provide the most reliable data is an important concern. The aim of the present study was to verify the reliability of HH-XRF and to systematically evaluate the different factors influencing measurement precision and accuracy, in order to assist with scientific advice for the usage of HH-XRF. Four experiments were performed to determine the influencing factors and to assess reliability through cross-validation using inductively coupled plasma optical emission spectrometry (ICP-OES). Finally, the reliability of HH-XRF was ensured, and the scientific advice regarding its application in determining the concentrations of the main elements of Linqing brick was provided.

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