scholarly journals Determination of Six Heavy Metal Elements Such as Co in Solid Waste by ICP-MS

2019 ◽  
Vol 300 ◽  
pp. 032108
Author(s):  
Wang Zhao
Keyword(s):  
Heavy Metal ◽  
Solid Waste ◽  
Metal Elements ◽  
Icp Ms ◽  
Heavy Metal Elements

scholarly journals Heavy metal elements in toiletries analyzed by INAA, ICP-MS and SEM-EDX

2011 ◽  
Vol 1 (1) ◽  
pp. 393-398
Author(s):  
E. Furuta ◽  
H. Minowa ◽  
K. Tagami ◽  
Y. Okada ◽  
H. Nakahara
Keyword(s):  
Heavy Metal ◽  
Detection Limit ◽  
Inductively Coupled Plasma ◽  
Particle Sizes ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements ◽  
High Concentrations

AbstractRecently, many toiletries claiming inclusion of platinum (Pt), silver (Ag) and gold (Au) as additives are sold in ordinary cosmetics shops. However, their concentrations are not clearly indicated. In the present work, these toiletries were analyzed for heavy metal elements by instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS), and the particle sizes were observed by scanning electron microscope (SEM) and the constitutions of the small particles were analyzed by energy dispersive X-ray spectroscopy (EDX). The concentrations of Pt in the toiletries observed were from 1 to 80 ppm. The lower detection limit of Pt by INAA was about 1 ppm because of the presence of sodium in high concentrations for those samples. Consequently, some toiletries which should have had Pt according to the manufactures were found not to contain Pt probably because it was less than the detection limit. On the other hand, there were a few toiletries that were found to contain Ag although the addition of Ag was not mentioned by the manufactures. It is considered that these non-indicated Ag were included as impurities of the added Au. The concentrations of the non-indicated Ag were even higher than those of the indicated Ag. A very small amount of Sr, which was nominated in the negative list of Japan, was also detected in 2 out of 5 kinds of toiletries analyzed by ICP-MS.

scholarly journals Determination of Heavy Metal Elements in Different Vegetable Edible Oils in China

2017 ◽  
Vol 29 (5) ◽  
pp. 937-939 ◽  
Author(s):  
Bo Zhao ◽  
Jidong Zhang ◽  
Tengzhou Ma ◽  
Huidong Qiu ◽  
Shaozhi Ma
Keyword(s):  
Heavy Metal ◽  
Edible Oils ◽  
Metal Elements ◽  
Heavy Metal Elements

scholarly journals Determination of muon absorption coefficients in heavy metal elements

2019 ◽  
Vol 12 (1) ◽  
pp. 281-288
Author(s):  
Rasha N. I. Altameemi ◽  
Nurul Shazana Abdul Hamid ◽  
Wan Mohd Aimran Wan Mohd Kamil ◽  
Saad M. Saleh Ahmed
Keyword(s):  
Heavy Metal ◽  
Absorption Coefficients ◽  
Metal Elements ◽  
Heavy Metal Elements

scholarly journals Simultaneous Determination of Cr, As, Se, and Other Trace Metal Elements in Seawater by ICP-MS with Hybrid Simultaneous Preconcentration Combining Iron Hydroxide Coprecipitation and Solid Phase Extraction Using Chelating Resin

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Akihide Itoh ◽  
Masato Ono ◽  
Kota Suzuki ◽  
Takumi Yasuda ◽  
Kazuhiko Nakano ◽  
...  
Keyword(s):  
Trace Metal ◽  
Solid Phase ◽  
Iron Hydroxide ◽  
Environmental Water ◽  
Chelating Resin ◽  
Metal Elements ◽  
Icp Ms ◽  
Trace Metal Elements ◽  
Hydroxide Coprecipitation

In the present study, ICP-MS with a new hybrid simultaneous preconcentration combining solid phase extraction using chelating resin and iron hydroxide coprecipitation in one batch at a single pH adjustment (pH 6.0) were developed for multielement determination of trace metal ions in seawater. In multielement determination, the present method makes it possible to determine Cr(III), As(V), Se (IV), and other 14 trace metal elements (Ti, V, Co, Ni, Cu, Zn, Zr, Ge, Cd, Sb, Sn, W, Pb, and U) in seawater. Moreover, for speciation analyses of Cr, As, and Se, the pH dependence on recovery for the different chemical forms of Cr, As, and Se was investigated. In speciation analyses, Cr, As, and Se were determined as the total of Cr (III) and a part of Cr (VI), total of As (III) and As (V), and Se(IV), respectively. Determination of total of Se and Cr(VI) remains as future task to improve. Nevertheless, the present method would have possibility to develop as the analytical method to determine comprehensively most metal elements in all standard and guideline values in quality standard in environmental water in Japan, that is, most toxic metal elements in environmental water.

scholarly journals Study on the Content and Influence of Heavy Metal Elements in Dust of Xiqing District of Tianjin

2021 ◽  
Vol 248 ◽  
pp. 01042
Author(s):  
YanShan Yin ◽  
Jin Xu
Keyword(s):  
Heavy Metal ◽  
Air Quality ◽  
Human Health ◽  
Inductively Coupled Plasma ◽  
Great Influence ◽  
Electric Heating ◽  
Atmospheric Environment ◽  
Total Dust ◽  
Metal Elements ◽  
Heavy Metal Elements

At present, heavy metal elements in dust have great influence on air quality and human health,therefore, the content and influence of heavy metal elements on campus were studied. Firstly, PM10 and total dust in the autumn campus atmosphere were sampled for 10 consecutive days, and then digested by electric heating plate digestion method. Then, inductively coupled plasma emission spectrometer (ICP-OES) was used to detect and analyze the content and concentration ratio of seven heavy metal elements Cu, Pb, Cd, Zn, Cr, Hg and Ba in PM10 and total dust. Finally, through comparative analysis, it is concluded that heavy metal pollutants in the atmospheric environment are mainly Zn and Ba, and the concentrations of Cd, Zn and Ba are seriously exceeded, so the air quality in Xiqing District of Tianjin is poor, and the particle size distribution of Cd and Hg makes it easy to enter the human body, which is especially unfavorable to human health.

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