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.

Visually sorting waste wood — an exploratory study

2021 ◽  
pp. 1-4
Author(s):  
Anna Schild ◽  
Julie Cool
Keyword(s):  
Mass Spectrometry ◽  
Heavy Metal ◽  
Exploratory Study ◽  
Inductively Coupled Plasma ◽  
Wood Preservatives ◽  
Waste Wood ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements

Waste wood collected at the Vancouver landfill has been sorted based on the visibility of coatings, paints, and the green colorization of wood typically associated with wood preservatives. The sorted material was then ground and tested with an inductively coupled plasma mass spectrometry (ICP–MS) for heavy metal elements that are toxic or harmful to humans and (or) the environment. Results indicated that wood preservatives were not visually detectable but paints and coatings were. Therefore, the study demonstrated that visual sorting is not sufficiently accurate to distinguish between treated and clean or untreated waste wood.

scholarly journals Recent advances in the analysis of non-traditional stable isotopes by multi-collector inductively coupled plasma mass spectrometry

2017 ◽  
Vol 32 (10) ◽  
pp. 1848-1861 ◽  
Author(s):  
Dawei Lu ◽  
Tuoya Zhang ◽  
Xuezhi Yang ◽  
Peng Su ◽  
Qian Liu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Heavy Metal ◽  
Stable Isotopes ◽  
Inductively Coupled Plasma ◽  
Clear Definition ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Stable Isotopic ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements

Non-traditional stable isotopes, with no clear definition yet, generally refer to isotopes beyond C, H, O, N, and S with small variations in natural stable isotopic compositions, such as isotopes of transition and heavy metal elements.

scholarly journals Determination of Essential and Toxic Elements in Cattle Blood: Serum vs Plasma

Animals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 465 ◽  
Author(s):  
Diego Luna ◽  
Marta López-Alonso ◽  
Yolanda Cedeño ◽  
Lucas Rigueira ◽  
Víctor Pereira ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Toxic Elements ◽  
Serum Samples ◽  
Element Analysis ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Essential And Toxic Elements ◽  
High Concentrations

This study was designed to evaluate the influence of type of blood sample (serum or plasma) on essential and toxic element analysis in cattle. Paired plasma and serum samples (n = 20) were acid digested, and the concentrations of As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, Li, Mg, Mn. Mo, Ni, P, Pb, Sb, Se, Sr and Zn were determined by inductively coupled plasma mass spectrometry (ICP-MS). The study findings indicate that plasma and serum samples appear suitable and interchangeable for the determination of most of the essential and toxic elements in blood in cattle. The only exceptions are Cu and Se, the concentrations of which were significantly lower (40.9 and 29.9% respectively) in serum than in plasma. Some of the Cu in blood samples from bovine ruminants is known to be sequestered during clotting. However, further research on Se in ruminants and other animal species is warranted. Finally, the significantly higher Mn (9.9%) concentrations in serum than in plasma may have been caused by haemolysis of some samples. Special attention should be paid to preventing haemolysis of samples during collection and processing, in order to prevent overestimation of elements present at high concentrations inside erythrocytes (i.e., Fe, Mn and Zn).

Rapid, versatile and sensitive method for the quantification of radium in environmental samples through cationic extraction and inductively coupled plasma mass spectrometry

2018 ◽  
Vol 33 (6) ◽  
pp. 1031-1040 ◽  
Author(s):  
Claire Dalencourt ◽  
Annie Michaud ◽  
Azza Habibi ◽  
Alexa Leblanc ◽  
Dominic Larivière
Keyword(s):  
Mass Spectrometry ◽  
Detection Limit ◽  
Environmental Samples ◽  
Inductively Coupled Plasma ◽  
Selective Method ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Cationic Resin ◽  
Plasma Mass Spectrometry ◽  
Sensitive Method

Rapid and selective method for radium quantification with interference removal by cationic resin and ICP-MS/MS, leading to a detection limit of 10 fg L−1 for 226Ra and 228Ra.

scholarly journals One-factor-at-a-time method combined with ICP-MS for determining 11 elements in soy sauce and their migration from the containing glass bottles

2021 ◽  
Vol 41 (1) ◽  
pp. 10-20
Author(s):  
Xun Gao ◽  
Kexin Chen ◽  
Yue Zhang ◽  
Miaomiao Chi
Keyword(s):  
Risk Assessment ◽  
Inductively Coupled Plasma ◽  
Microwave Digestion ◽  
Soy Sauce ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Migration Study ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Glass Bottles

Abstract This study was designed to determine the 11 metal elements (Al, Cr, Mn, Fe, As, Ni, Cu, Zn, Cd, Sb, and Pb) in soy sauce and their migration from the containing glass bottles. Inductively coupled plasma mass spectrometry (ICP-MS) was applied for the determination of the elements and one-factor-at-a-time method was employed for optimizing the ICP-MS parameters in migration experiment and microwave digestion experiment. The developed method was successfully applied to determine the content of 11 elements. The results showed that the experiment had excellent correlation and sensitivity. The accuracy of the elements in the migration study and test of soy sauce itself ranging from 84.25% to 118.75% was satisfied, and the precision of the method was validated and the RSD was no more than 15.5%. The concentration of all the detected metal elements migrated from the glass bottles were between 0.3450 and 2.398 ng·mL−1, and the risk assessment indicated that the metal elements in soy sauce had no risk to the public health. The proposed methodology in this study was successfully applied for the quality control for metal elements in soy sauce and the containing glass bottles for the first time, and a research method suitable for soy sauce consumption process control and risk assessment has been established.

scholarly journals Trace Metal Element Analysis in Some Seafood in the Coastal Zone of the Red River (Ba Lat Estuary, Vietnam) by Green Sample Preparation and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Nhu Da Le ◽  
Thi Thu Ha Hoang ◽  
Vu Phong Phung ◽  
Thi Lien Nguyen ◽  
Thi Thuy Duong ◽  
...  
Keyword(s):  
Trace Metal ◽  
Coastal Zone ◽  
Inductively Coupled Plasma ◽  
Red River ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Trace Metal Elements ◽  
Plasma Mass Spectrometry ◽  
Green Sample

Fisheries and aquaculture production in the coastal zone of Vietnam contribute significantly to the national economy. However, seafood quality and safety, especially in terms of metal contents, are of increasing concern, for both domestic and international markets. This paper presents the results of an investigation in some trace metal elements (iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), arsenic (As), cadmium (Cd), and mercury (Hg)) concentrations in some fishes, crustaceans, and molluscs in the coastal zone of the Red River (in the Ba Lat estuary in Thai Binh and Nam Dinh provinces) during four sampling campaigns in 2020. All samples were treated by a green sample preparation using microwave digestion and then analyzed by inductively coupled plasma-mass spectrometry (ICP-MS). The results showed that the trace metal element concentrations in fish, crustacean, and mollusc samples decreased in the following order: Fe > Zn > Mn > Cu > As > Cd ∼ Hg. In more details, the ranges of trace metal elements in seafood samples were 13.13–202.73; 7.63–82.71; 0.48–22.73; 0.72–15.58; 0.18–5.12; 0.001–1.114; and 0.001–0.923 mg·kg−1 for Fe, Zn, Mn, Cu, As, Cd, and Hg, respectively. The research results contribute to the dataset of the seafood (both fishery and aquacultural seafood) quality in the Red River coastal zone. Although the mean values of different trace metal elements observed in this study were lower than the allowed values of Vietnam’s or European’s threshold for food safety, some high concentrations were detected. The survey results suggest the need to expand the monitoring scope (frequency of monitoring, number of samples, and observed variables) for obtaining a fully comprehensive assessment of seafood quality in this region. Our results also indicate that it is necessary to manage water quality in coastal areas, especially where aquaculture activities are carried out.

ICP/MS in Evaluation Heavy Metal Influence on the Behavior of Natural Temporary Teeth

2008 ◽  
Vol 396-398 ◽  
pp. 175-178 ◽  
Author(s):  
Ioana Demetrescu ◽  
R. Luca ◽  
D. Ionita ◽  
D. Bojin
Keyword(s):  
Mass Spectrometry ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Environmental Risk ◽  
Inductively Coupled Plasma ◽  
Spectrometry Method ◽  
Mass Spectrometry Method ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

The aim of this paper is to evaluate using ICP/MS (inductively coupled plasma mass spectrometry method ) the small amount of heavy metal existing in temporary teeth of children from area with high environmental risk regarding heavy metals, and to correlate this amount with the state of degradation of such teeth, taking into account that teeth are biological archive.

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